Mines and Works Inspection Act 1920

Definitions and territorial/application frame: the Act defines core terms centrally in s 4. “Mine” is defined to include any place in, on, or under which a mining operation has been or is being carried on, and includes “works” (s 4). “Mineral” is defined by an inclusive list of substances and also by proclamation power to declare further substances to be minerals (s 4(1), (2)(a)). “Mining or mining operation” is defined by reference to searching for or recovering minerals and operations at works, with a proclamation power to add or exclude classes of operations (s 4(1), (2)(b)). “Owner” is defined to include immediate proprietor, lessee or occupier and includes a contractor or tributor working therein, but excludes persons who merely receive royalty/rent or are only owners of the soil without interest in the mine’s products (s 4(1) owner). “Works” is a listed, partly technical category (batteries, crushing plants, smelting works, pre-mix concrete works etc) and may be expanded or narrowed by regulation (s 4(1) works).

Inspectorate and appointment: the Governor appoints a chief inspector and any other inspectors necessary (s 6). Inspectors have broad statutory powers on inspection and enforcement (s 10). Public Service employees can be authorised by the Minister to inspect and, when so authorised, have the same powers as inspectors (s 7(1), (3)). There are disqualification grounds for inspectors aimed at conflict of interest , practising as a mining agent or engineer, employment about a mine, or holding an interest in a mine , without Ministerial authority (s 8(1)). Acting while disqualified attracts a monetary penalty (s 8(2)).

Inspection powers and directions: inspectors may enter without notice at reasonable times and may do so day or night (s 10(1)(a)). Their inquiry powers extend to state and condition of mine and machinery, ventilation and air, accidents, safety, nuisance and amenity issues (s 10(1)(c)(i)-(vii)). Inspectors may order discontinuance of unsafe machinery or unsafe practices, order cessation of operations liable to cause nuisance or property damage (s 10(1)(d)-(e)), and may order immediate cessation of work and evacuation of a mine or part thereof if considered unsafe (s 10(1)(f)). Inspectors may give directions not expressly provided for in regulations where necessary for safety or to prevent nuisance or damage (s 10(1)(h)). Orders may be given orally or in writing and, for persons other than owners/agents, may be posted conspicuously on the mine (s 10(2)).

Enforcement mechanics: failure to comply with an inspector’s order attracts specified penalties (s 10(3), including daily default penalties per s 24A). Inspectors may, with Ministerial approval, carry out required work themselves and recover the cost from the owner as a debt to the Crown (s 10(4)-(6)). Proceedings for offences may only be taken by an inspector or a person authorised by the Minister (s 19(1)). Time bars apply: prosecutions must start within six months from when the inspector/person taking proceedings learned of the matter, but in no case later than twelve months after the offence (s 19(2)).

Review and adjudication: an affected person may apply to the South Australian Civil and Administrative Tribunal for review of orders given under s 10(1)(e) (amenity impairment orders) (s 11(1)). The application must be made within one month (s 11(2)). The Tribunal will use assessor panels established under the SACAT Act for mining experience and aesthetic/amenity experience (s 11(3)-(4)).

Miners’ inspectors: miners employed at a mine may appoint two of their number or two practical miners as miners’ inspectors (s 12(1)-(2)). They must notify the owner and are to be allowed access to every part of the mine and machinery. They must record and sign reports in a record book and must forward a copy to the chief inspector if the report notes existing or apprehended danger (s 12(4)). Miners’ inspectors are deemed to be workmen employed by the owner for the purposes of the Workmen’s Compensation Act 1971 while making such inspections (s 12(5)). The Minister may terminate such appointments (s 12(6)).

Regulation scope and incorporation: the Governor may make regulations to secure safety, health and amenity and prevent nuisance or damage (s 18(1)), applying statewide or by specified locality or class of mine (s 18(2)). Regulations may incorporate codes of practice approved under Part 14 Division 2 of the Work Health and Safety Act 2012 and other documents published by bodies or authorities, with or without modification (s 18(2a)). The Schedule enumerates subjects regulations may cover in detail , ventilation, explosives, winding machinery, shafts, sanitation, waste and amenity, medical certification, fees, and more.

Penalty structure and default penalties: specified offence penalties appear in the Act text (for example s 9 confidentiality max $10,000; s 13 obstructing inspector max $1,000; s 17 under-18s max $500; s 10(3) up to $2,000 first, $4,000 subsequent plus default penalty not exceeding $200). The default penalty mechanism is set out in s 24A, which imposes an additional per-day penalty for continuing acts/omissions and re-offending after conviction.

Evidence, procedure and protections: the onus of proof in specified matters shifts to the defendant in prosecutions under the Act (s 22(a)), and authorisation to take proceedings may be proved by production of a Minister-signed document (s 22(b)). Proceedings in respect of offences must be commenced only by authorised persons and are time-limited (s 19). Inspectors and other authorised persons enjoy protection from civil action for acts done in execution or intended execution of duty, subject to a six-month limitation for bringing action (s 27).

These main concepts form the statutory architecture of inspection, control and enforcement over mining and works operations under the Act.

Owners, agents and contractors: the Act directly imposes duties and liabilities on owners of mines and on their agents. “Owner” is defined to include immediate proprietors, lessees or occupiers and specifically includes contractors or tributors working in the mine (s 4(1) owner). An owner or agent may be the recipient of inspectors’ orders, the entity from which costs of remedial work may be recovered (s 10(4)-(6)), and the primary party liable for offences and default penalties for non-compliance with orders (s 10(3), s 24A).

Workers and miners: persons employed in or about mines are within the Act’s protective ambit. They may appoint miners’ inspectors (s 12(1)), who are afforded rights of inspection and obligations to report dangers (s 12(4)). Prohibitions affect employment practices: employing persons under 18 years underground requires written Ministerial consent; breaching this attracts a penalty (s 17). Miners’ inspectors are specifically treated as workmen employed by the owner for workers compensation purposes while performing inspections (s 12(5)), which affects entitlements and coverage.

Inspectors, authorised Public Service employees and the chief inspector: the Governor appoints inspectors (s 6). Inspectors have broad powers (s 10). The Minister may authorise Public Service employees to exercise inspector powers for official purposes; the authorised Public Service employee has the same powers and authorities as an inspector (s 7(1), (3)). Disqualification rules apply to potential inspectors to exclude persons with certain industry ties absent Ministerial authority (s 8).

Third parties and the public: the Act’s objects include protection of the general public from nuisances or damage or impairment of amenity caused by mining operations (s 10(1)(c)(vii), s 18(1)). Inspectors can examine operations that affect the public and order cessation of practices that are creating or likely to create a nuisance or damage property (s 10(1)(c)(vi), (e)). The Minister may direct fines to be paid or distributed among injured persons or relatives in cases causing loss of life or personal injury (s 21(1)).

Regulators and decision-makers: the Minister has multiple decision-making roles under the Act , authorisation of Public Service employees, termination of miners’ inspectors appointments (s 12(6)), directing special inquiries and disclosure or publication (s 15), approving inspectors’ remedial work (s 10(4)), and the power to direct distribution of fines (s 21). The Governor (executive) appoints inspectors and makes regulations (ss 6 and 18). The Tribunal is the review forum for amenity-related orders under s 10(1)(e) (s 11).

Businesses providing technical services and suppliers: the Schedule contemplates detailed regulation of many technical areas , machinery, ventilation, explosives storage/use, winding ropes, testing and certification, and fees for testing (Schedule items 11, 16, 17, 22, 23). Businesses supplying plant, maintenance and certification services will be affected where regulations prescribe standards, tests, or accreditation. The regulations may also adopt or incorporate codes of practice and other documents by reference (s 18(2a)), which pulls in standards-setting bodies and their material.

Persons making information available to the regulator and recipients of confidential information: confidentiality obligations (s 9) restrict disclosure of trade processes or financial information obtained in the administration of the Act, subject to exceptions for Ministerial/admin use or legal proceedings. That places an obligation on inspectors, Public Service employees, owners and agents to manage commercial information and constrains public disclosure lines.

Prosecutors and enforcement officers: only inspectors or persons authorised by the Minister may commence proceedings for offences (s 19(1)), concentrating prosecutorial authority. Costs for inspectors’ proceedings are payable out of parliamentary appropriations and inspectors are protected from personal cost liability (s 19(3)).

Legal practitioners, compliance advisers and unions: the Act affects the advice and compliance activities of lawyers, accountants and safety advisors through regulatory content (Schedule) and enforcement mechanics. Miners’ capacity to appoint inspectors (s 12) may influence workplace representation and union strategies. Defence strategies must account for the onus-shifting provisions (s 22) and strict time-limits for prosecutions (s 19(2)).

In short, the statutory regime primarily burdens owners and agents for compliance, subjects workers to protection and participation mechanisms (miners’ inspectors), concentrates enforcement initiation in inspectors or Ministerially authorised persons, and gives inspectors and the Minister significant discretionary authority. The Schedule and the regulation-making power extend the Act’s reach into many technical domains, thereby affecting contractors, suppliers and certification bodies.

Owners and agents , duties and liability: owners and agents are obliged to comply with inspector orders and directions concerning safety, health, nuisance, property damage and amenity (s 10(1)(d)-(f), s 10(3)). Failure to comply attracts monetary penalties (first offence up to $2,000; subsequent offences up to $4,000) and a possible default penalty for continuing non-compliance (s 10(3); see s 24A for the default penalty mechanics). The owner or agent must provide inspectors with the means necessary for making entries, inspections, examinations or inquiries (s 13(2)) under a maximum penalty of $1,000. Owners are liable to repay costs if the inspector, with Ministerial approval, causes required work to be carried out and recovers the cost as a debt due to the Crown (s 10(4)-(6)).

Workers , rights to nominate inspectors and protections: miners employed at a mine may appoint two miners or practical miners as miners’ inspectors (s 12(1)-(2)). Those miners’ inspectors must be allowed to inspect every part of the mine on giving notice and must lodge reports in the site record book (s 12(1), (4)). If a report discloses the existence or apprehension of danger, a copy must "forthwith" be sent to the chief inspector and the owner notified (s 12(4)). Miners’ inspectors are deemed workmen employed by the owner while inspecting for the purposes of the Workmen’s Compensation Act 1971 (s 12(5)), which confers a statutory employment-status protection for indemnity or compensation purposes. The Minister may terminate miners’ inspector appointments (s 12(6)), giving the Minister a removal power.

Inspectors , powers and immunities: inspectors have the power to enter, without notice and at any reasonable time, inspect mines and every part thereof (s 10(1)(a)). Inspectors may inquire into mine condition, machinery, ventilation, accidents, safety and amenity matters (s 10(1)(c)(i)-(vii)). They may order discontinuance of unsafe machinery/practices (s 10(1)(d)), cessation of operations creating nuisance or likely to damage property (s 10(1)(d)(iii)-(e)), and immediate evacuation and cessation of work where unsafe (s 10(1)(f)). Inspectors can inspect storage and use of explosives and give directions even if not covered by regulations when necessary (s 10(1)(g)-(h)). Inspectors are protected from suit for acts done in execution or intended execution of duty unless action is commenced within six months (s 27).

Minister , powers of authorisation, inquiry, and distribution of fines: the Minister may authorise Public Service employees to act with the powers of inspectors (s 7(1)), may approve an inspector carrying out remedial works (s 10(4)), may direct special inquiries and publish the report (s 15), may terminate miners’ inspector appointments (s 12(6)), and may direct the payment or distribution of fines obtained for offences that occasion loss of life or personal injury to affected persons, so long as the Minister is satisfied those persons did not cause or contribute to the offence (s 21(1)-(2)).

Rights of review and procedural rights: a person required to comply with an order under s 10(1)(e) (an order to cease operations or practices unduly impairing amenity) may seek review by the South Australian Civil and Administrative Tribunal under s 34 of the SACAT Act (s 11(1)). The application must be filed within one month (s 11(2)). For such reviews, panels of assessors with mining experience and experience in assessing aesthetic effects must be established under the SACAT Act and may be used at the Tribunal's discretion to sit with assessors selected by the President (s 11(3)-(4)). For other orders or directions given by inspectors, it is a defence to prosecution (except where the order/direction is reviewable under s 11) to prove the order was not justified by its stated purpose (s 10(3a)).

Confidentiality obligations and exceptions: a person must not divulge trade processes or financial information obtained in administering the Act except as authorised by the Act or regulation, with consent, to the Minister or Crown officers for administration/enforcement, or for legal proceedings arising out of administration or enforcement (s 9(a)-(d)). Breach of this confidentiality provision carries a maximum penalty of $10,000 (s 9).

Notification and service mechanics: the Act prescribes permitted methods for giving notices or documents , personal delivery; registered post to last known residential/business or registered address; leaving at the address with someone over 16; or transmission by fax or email to a number/email provided by the person, in which case service is taken at time of transmission (s 16). Orders and directions from inspectors may be given orally or in writing (s 10(2)). For persons other than owner/agent, posting a written notice conspicuously on the mine also suffices (s 10(2)(b)).

Limitations and procedural constraints on prosecutions: only an inspector or a person authorised by the Minister may commence offences proceedings under the Act (s 19(1)). These proceedings must be commenced within six months from when the inspector or authorised person learned of the matter but no later than twelve months after commission of the offence (s 19(2)). Costs incurred by or awarded against inspectors in connection with such proceedings are payable from parliamentary appropriations; the inspector is not personally responsible (s 19(3)).

Default penalty mechanism: where a provision includes the term “default penalty”, s 24A standardises its operation , an additional daily penalty for continuing acts or omissions is applied (s 24A(1)(a)), and continued failure after conviction constitutes a further offence with daily penalties for the period of continuation (s 24A(1)(b)). Omission-to-do-things is explicitly treated as continuing for purpose of the default penalty (s 24A(2)).

These duties and rights allocate compliance obligations to owners and agents, procedural and review rights to persons affected by amenity orders, participatory and reporting rights to miners, and broad discretionary and operational authority to inspectors and the Minister.

Monetary penalties and default penalty regime: the Act prescribes a range of monetary penalties for specific breaches and empowers regulations to set penalties up to $1,000 for regulatory breaches (s 18(3)). Key statutory penalties include: confidentiality breaches up to $10,000 (s 9); obstructing, hindering or using insulting language to an inspector up to $1,000 (s 13(1)); failing to furnish an inspector with means necessary for inspection up to $1,000 (s 13(2)); employing persons under 18 underground without Ministerial consent up to $500 (s 17). Non-compliance with an inspector’s order can attract up to $2,000 for a first offence and up to $4,000 for any subsequent offence, plus a default penalty not exceeding $200 for continuing contravention where the footnote lists a default penalty (s 10(3)). The Act’s s 24A explains the operation of default penalties, providing for a per-day amount for continuing acts or omissions and for continuing offences after conviction.

Custodial penalty for serious wilful neglect: where an offence is, in the court’s opinion, reasonably calculated to endanger persons or cause serious injury or dangerous accident and is committed wilfully by the accused’s personal act, default or negligence, the court may substitute imprisonment for a monetary penalty, up to six months (s 20). The provision makes a custodial alternative available where the court considers a fine inadequate.

Enforcement concentration and initiation of proceedings: only inspectors or persons authorised by the Minister may commence proceedings for offences under the Act (s 19(1)). This centralises prosecutorial discretion in the regulator’s hands and subjects enforcement initiation to Ministerial authorisation where another person is involved. Costs of proceedings involving inspectors are to be met from parliamentary appropriations; inspectors are not personally liable for such costs (s 19(3)).

Powers to make safe and recover costs: if an owner fails to comply with an inspector’s order to carry out work, the inspector with Ministerial approval may cause the work to be carried out with such assistants as necessary (s 10(4)). The cost of that work may be recovered from the owner as a debt due to the Crown (s 10(5)), and a document purporting to be signed by the chief inspector stating the cost is, in the absence of proof to the contrary, proof of that cost (s 10(6)). This both creates a creditors’ remedy in favour of the Crown and a procedural evidentiary presumption supporting recovery actions.

Procedural protections for inspector decision-making and defences: an express defence exists to proceedings for offences under s 10(3) if it is proved that the inspector’s order or direction was not justified by the purpose for which it was given, except for orders reviewable under s 11 (s 10(3a)). This places on defendants a defensive evidential task to displace inspector decisions, while preserving amenity-order reviews to SACAT.

Time limits and onus of proof: prosecutions are subject to a dual time-bar , six months from knowledge by the inspector or authorised person and no later than twelve months from the offence itself (s 19(2)). In prosecutions, the onus is on the defendant to prove certain matters: that a person alleged to be an inspector or authorised person is not; that an alleged owner or agent is not so; or that an alleged employee is not employed in that mine (s 22(a)). Ministerial authorisation to take proceedings can be proved by production of a Minister-signed document (s 22(b)).

Protection from civil suit for inspectors: inspectors and other persons acting in execution or intended execution of duty are protected from civil actions unless action is begun within six months after the cause of action arises (s 27). This reduces personal liability risk for inspectors engaged in enforcement activities.

Application of fines and ministerial discretion on restitution: where a fine arises from an offence that has occasioned loss of life or personal injury, the Minister may direct payment of the fine, or part of it, to injured persons or relatives of deceased persons, provided the Minister is satisfied those persons did not cause or contribute to the offence (s 21(1)-(2)). Otherwise, fines go to the Treasurer for public uses (s 21(3)).

Regulatory penalties and incorporation of codes: regulations may provide penalties not exceeding $1,000 for breach of any regulatory provision and may prescribe default penalties for continuing breaches (s 18(3)). Regulations may also adopt codes of practice under the Work Health and Safety Act 2012 (s 18(2a)), importing standards which carry regulatory enforcement weight.

Summary: the enforcement architecture mixes criminal penalties, daily default penalties for continuing offences, a discretionary custodial alternative for serious wilful neglect, statutory powers to carry out remedial work and recover costs, procedural evidentiary presumptions and onus shifts that favour regulatory enforcement, and mechanisms for restitution of fines to injured persons at the Minister’s direction for cases involving serious injury or death.

Relation to Work Health and Safety Act 2012 and codes: the Act expressly permits regulations made under it to incorporate, adopt or apply any code of practice approved under Part 14 Division 2 of the Work Health and Safety Act 2012, or other documents prepared or published by bodies or authorities, with or without modification (s 18(2a)). Thus, compliance with regulatory instruments under this Act may require conformity with WHS 2012-approved codes and technical documents. That mechanism creates a statutory bridge allowing standards developed under the WHS framework to be given force as mining regulations.

Interaction with Workmen’s Compensation Act 1971: miners’ inspectors are deemed to be workmen employed by the owner of the mine while making inspections for the purposes of the Workmen’s Compensation Act 1971 (s 12(5)). That statutory deeming affects entitlement to compensation and insurance coverage for miners’ inspectors engaged in inspection activities.

Tribunal review and SACAT Act: s 11 provides that orders or directions under s 10(1)(e) (amenity impairment orders) are reviewable by the South Australian Civil and Administrative Tribunal under s 34 of the SACAT Act 2013. The Act anticipates assessor panels established under the SACAT Act (s 11(3)) and permits the Tribunal to sit with assessors selected by the President (s 11(4)). Transitional provisions in the legislative history (Statutes Amendment (SACAT No 2) Act 2017 Pt 30 s 182) address the conversion of prior appeal rights to the Tribunal and the termination of Mines and Works Appeal Board members’ offices (historical amendments).

Savings and interaction with other criminal/civil remedies: s 23 explicitly preserves liability under other Acts or at common law, and allows courts to adjourn proceedings under this Act to enable proceedings under another Act; however no person may be punished twice for the same offence (s 23(1)-(2)). This preserves prosecutorial flexibility for other regulatory regimes or civil liability, including potentially higher penalties elsewhere, subject to double jeopardy constraints. The Act therefore coexists with other regulatory and common law remedies.

Proclamations and existing Acts: the Governor’s proclamation powers under s 4(2) allow declaration of substances to be minerals and operations to be mining or not mining, affecting coverage and interplay with other legislative schemes that define mining. Section 5 sets out specific application of the Act to certain indentured or Crown-seam mining operations (Roxby Downs Indenture, Whyalla Steel Works Indenture, and specified Leigh Creek coal arrangements), ensuring the Act applies to those operations despite other statutory frameworks (s 5(a)-(d)).

Evidence and procedural cross-references: s 10(6) creates an evidentiary presumption that a document purporting to be signed by the chief inspector stating costs is proof of that cost “in the absence of proof to the contrary”, which interacts with civil debt recovery procedures when the Crown sues for costs. Section 22(b) allows Ministerial authorisation to be proved by production of a signed document, linking administrative instruments with prosecutorial procedure.

Regulatory overlap and delegation: regulations under s 18 may create offences and penalties (s 18(3)), so regulatory instruments under the Act can overlap with other regulatory regimes (e.g. environmental protection, planning, or health regulations). The Act’s Schedule lists matters often regulated under separate environmental or planning laws (waste disposal, preservation of amenity, restoration of land), meaning operators may face parallel obligations under the Act and other statutes. The Act does not extinguish other regulatory obligations but coexists and may allow multiple enforcement tracks (s 23).

Appealboard to Tribunal transition and transitional provisions: amendments noted in the legislative history (2017, 2019 etc.) show the replacement of the Mines and Works Appeal Board with SACAT review pathways (see s 11 and associated transitional provisions in the legislative history, Statutes Amendment (SACAT No 2) Act 2017 Pt 30 s 182). Those changes affect appeal routes and the structure of administrative review for affected parties.

Overall, the Act is designed to operate alongside WHS frameworks, compensation laws and the administrative tribunal system, and it permits incorporation of external codes to align mining-specific requirements with broader occupational health and safety standards. It preserves other statutory and common law remedies and contains mechanisms for cost recovery and evidentiary presumptions that affect cross-instrument enforcement.

The legislative history in the Act’s text records a long series of amendments and repeals from the principal Act’s commencement in 1921 up to and including amendments effective in 2021. The principal Act first commenced 20 January 1921 (Mines and Works Inspection Act 1920, No 1444). The Act repealed the Mining Act Amendment Act 1904 and the Mining Act Further Amendment Act 1919 on commencement.

Major later amendments and notable entries in the consolidated history include:

• 1978 (No 66) , A substantial set of amendments took effect 18 January 1979: s 4 was redesignated as s 4(1); “default penalty” language was inserted; "machinery" was substituted; definitions such as "mineral", "mining or mining operation", and "works" were substituted; s 7(1) was substituted; s 8(1) amended; s 10(1) amended; s 10(3) repealed and re-inserted; s 12 amended; s 13 substituted; s 17 substituted; s 24A inserted; cl 26 and 27 of the Schedule were inserted (a raft of technical and structural changes) (see “Provision How varied” entries for 66/1978 and commences 18.1.1979).

• 1986 (No 125) , The Occupational Health, Safety and Welfare Act 1986 (Pt 2 Sch 3) effected changes that commenced 30 November 1987, and later statutory changes referenced occupational health/safety interplay.

• 2003 (No 39) , The Statutes Amendment (Mining) Act 2003 made amendments (Pt 2 s 4) which commenced 30 October 2003. Also Statute Law Revision Act 2003 made changes (Sch 1) that commenced 24 November 2003.

• 2006, 2009, 2012 , Various statutory updates include incorporation of Part 14 Division 2 of the Work Health and Safety Act 2012 via amendment to s 18(2a), commencing 1 January 2013, enabling regulations to incorporate WHS-approved codes (see 2012 No 40, Sch 6 cl 6).

• 2017 (No 51) , The Statutes Amendment (SACAT No 2) Act 2017 inserted a new s 11 (review by SACAT) and removed the Mines and Works Appeal Board (Pt 30 ss 180-182). That amendment commenced on 4 October 2018 for the provisions listed. Transitional provisions (Statutes Amendment (SACAT No 2) Act 2017 Pt 30 s 182) set out how existing appeal rights under the former s 10A would be exercised as reviews before the Tribunal and terminated existing Appeal Board appointments.

• 2019 (Nos 14 and 29) , The Statutes Amendment (SACAT) Act 2019 and the Statutes Amendment (Mineral Resources) Act 2019 effected amendments: several sections were amended with effect from 1 October 2019 (Pt 17 ss 113 & 114), and significant amendments to definitions and provisions (e.g. manager deleted by 29/2019 s 127(1); s 5 substituted by 29/2019 s 128 , changes to application and scope) took effect 1 January 2021 (see 29/2019 Pt 3 ss 127-136, effective 1.1.2021).

• Numerous statute law revision and amendment Acts across decades are recorded (e.g. Statute Law Revision Acts 1935, 1965, 1974, 2003; Mines and Works Inspection Act Amendment Acts 1955, 1962, 1964, 1966, 1970, 1978, 1986; Statutes Amendment Acts 2006, 2009, etc.), with detailed entries showing which sections were varied and commencement dates.

Transitional provisions associated with the 2017 SACAT amendments are included in the legislative history. Section 182 of the amending Act provides that pre-existing appeal rights under the former s 10A will now be exercised before the Tribunal subject to specified provisions, that proceedings commenced before the relevant day are unaffected, and that members of the Mines and Works Appeal Board ceased to hold office on commencement of the transitional provision (Statutes Amendment (SACAT No 2) Act 2017, Pt 30 s 182).

The legislative history section of the Act records which provisions were amended, repealed or inserted at the level of specific subsections and clauses, including the dates when each amendment or repeal took effect. For example, s 10(3a) was added by Statute Law Revision Act 2003 (44/2003 s 3(1) (Sch 1)) effective 24.11.2003 and amended by 14/2019 s 113 effective 1.10.2019; s 11 as presently styled was inserted by 51/2017 s 181 effective 4.10.2018 and later had s 11(5) inserted by 14/2019 s 114 effective 1.10.2019. The history lists numerous targeted amendments that reshape scope, enforcement mechanics and appeal routes.

Users needing precise historical phrasing or exact change-tracking for litigation or compliance work should consult the individual amending Acts and the consolidated reprints noted (Reprint Nos 1-3 with dates provided) and the marginal notes that accompany the consolidated text for the pre-1976 history retained in the public consolidation volumes referenced in the Act’s notes.

The Act text provided includes no citations to cases or judicial decisions. The only materials in the legislative text that refer to dispute resolution or review are the administrative review route to the South Australian Civil and Administrative Tribunal (s 11) and the preservation of other legal proceedings in s 23. The legislative history records structural changes to appeal routes from the former Mines and Works Appeal Board to SACAT, and transitional provisions in the Statutes Amendment (SACAT No 2) Act 2017 (Pt 30 s 182) that convert existing appeal rights to Tribunal review and terminate office-holders of the former Appeal Board.

Because the source text supplied does not record judicial decisions, there are no cases named in this instrument on which to rely. Where parties seek to challenge inspector decisions or criminal prosecutions under the Act, the statutory review path for amenity orders is to SACAT (s 11), and for criminal or civil proceedings the Act preserves the availability of other Acts or common law remedies (s 23) subject to the prohibition against double punishment. The Act also contains procedural restrictions on who may commence prosecutions (s 19) and time-bars that will affect litigation strategy (s 19(2)). The onus-shifting rules in s 22 may become material in prosecutions.

Practitioners should therefore obtain and review relevant case law from South Australian courts and the Tribunal for practical litigation history, outcomes and judicial interpretation of the Act’s powers and defences. The Act as supplied, however, contains no internal litigation annotations or judgments.

Onus-shifting evidentiary points: s 22(a) places the onus on the defendant to prove certain specified matters in prosecutions under the Act , that an alleged inspector or authorised person is not such, that an alleged owner or agent is not such, or that an alleged employee is not employed in the mine in question. That shifts evidential burdens onto defendants for status questions typically considered matters for the prosecution to establish.

Concentration of enforcement initiation: only inspectors or persons authorised by the Minister may commence proceedings (s 19(1)). This centralises enforcement initiation and can materially affect detectability and timing of charges. It also means private parties cannot directly bring prosecutions under the Act.

Short notice and oral orders: inspectors can enter without previous notice "at all times by day or night" (s 10(1)(a)) and may give orders orally (s 10(2)). For persons other than owners or agents, posting a written notice in a conspicuous place on the site satisfies service (s 10(2)(b)). These mechanics can produce situations where operations are interrupted based on oral direction, with the statutory defence to prosecution narrowed by the exception for amenity-order reviewable under s 11 (s 10(3a)). Practitioners should therefore treat oral directions as immediately actionable.

Power to order cessation of operations and evacuation: inspectors can order immediate cessation and departure of all persons from any mine or part thereof judged unsafe (s 10(1)(f)). That is an operationally disruptive power which the owner must heed or face prosecution; an inspector’s order can be followed by the inspector carrying out remedial work with Ministerial approval and recovering costs (s 10(4)-(6)). The chief inspector's certificate of costs is prima facie evidence of cost in recovery proceedings (s 10(6)).

Default penalty for continuing offences: s 24A imposes daily penalties for continuing acts or omissions where the Act’s provisions provide for “default penalty” at the foot of a provision, and makes continued omission after conviction a further offence with daily penalties (s 24A(1)-(2)). Failure to act promptly after an inspector’s order thus can become an accumulating daily cost.

Limited timeframe for prosecution: prosecutions must be commenced within six months from when the inspector or authorised person learned of the matter, but no later than twelve months after the offence (s 19(2)). That can preclude late discovery prosecutions but also pressures inspectors to act promptly once aware of an issue.

Inspector discretion and limited internal checks: many of the Act’s most consequential powers are conferred on inspectors and the Minister , including the power to order cessation of work, to require remedial works, to approve inspectors performing work for recovery from owners, to publish inquiry reports, and to terminate miners’ inspector appointments (ss 10(1)(e),(f), 10(4), 15, 12(6)). Whilst amenity orders are reviewable to the Tribunal (s 11), many safety-related orders are not explicitly reviewable under s 11; the defence in s 10(3a) applies in prosecutions but does not itself provide a standalone administrative review pathway.

Regulations may incorporate external documents: s 18(2a) allows regulations to incorporate codes of practice and other external documents by reference, as in force when the regulations are made or as in force from time to time. That means compliance obligations can be updated by reference rather than by amending the Act or primary regulations, producing potential uncertainty about which version of a code applies unless the regulations specify.

Confidentiality exceptions and ministerial/crown access: the confidentiality prohibition in s 9 has multiple exceptions that permit disclosure to the Minister or Crown officers in connection with administration or enforcement, or for legal proceedings. That reduces absolute commercial confidentiality in enforcement contexts and creates layers of permitted disclosure.

Limits on who is an inspector and disqualification penalties: s 8 disqualifies persons from acting as inspectors if they practice in certain mining-related professions, are employed in or about any mine, or knowingly hold interests in any mine, without Ministerial authority. Acting while disqualified carries a penalty (s 8(2)). Organisations must ensure persons appointed as inspectors meet these statutory criteria or have Ministerial authority.

Tribunal review limited to amenity orders: the express right of review to the Tribunal under s 11 is limited to orders under s 10(1)(e) dealing with amenity impairment. Other inspector orders (for example immediate cessation of work for safety) are not within s 11’s review route; the statutory defence to prosecution (s 10(3a)) is available in court proceedings except for orders that are reviewable under s 11. The practical effect is that different kinds of inspector orders have different procedural challenge routes and timing.

Recoverability of costs and evidentiary presumption: s 10(6) provides that a document purporting to be signed by the chief inspector stating costs is, in the absence of proof to the contrary, proof of that cost. That evidentiary presumption aids the Crown in debt recovery for remedial work and creates an uphill evidentiary task for the owner seeking to displace the stated cost.

Penalties for obstructing inspectors and failing to assist: s 13(1)-(2) creates low nominal monetary penalties (max $1,000) for obstructing inspectors or failing to furnish required means for inspection. While not high, those penalties interact with the more significant interruption powers in s 10 and default penalties, raising the operational risk of prosecution for obstructive conduct.

Application to specific Crown and indentured operations: s 5 explicitly applies the Act to specified operations under particular indentures and to persons entitled to mine certain Crown seams (Leigh Creek), indicating the Act’s application extends even where other special statutory frameworks exist.

Taken together, these “gotchas” are concrete procedural, evidential and operational features to watch for in compliance, enforcement and litigation planning.

Establish compliance governance and role clarity: owners and agents should document and maintain clear lines of responsibility for safety, regulatory compliance and interactions with inspectors. The Act treats owners and agents as the primary compliance parties (s 4 owner definition; s 10(3) liability for non-compliance). Maintain updated contact addresses and fax/email addresses so notices can be validly served (s 16).

Recordkeeping and plans: comply with Schedule items , maintain plans and sections of underground and surface workings, keep them on site, and furnish copies to the Minister when required as contemplated in Schedule item 6. Keep record books for miners’ inspectors’ reports and ensure copies of reports that identify dangers are promptly sent to the chief inspector as required (s 12(4)).

Prepare for inspections and possible unannounced entries: inspectors may enter without notice day or night (s 10(1)(a)) and Public Service employees authorised by the Minister have the same powers (s 7(1), (3)). Ensure that staff and procedures are in place to facilitate immediate access and that machinery and practices comply with expected safe standards to reduce the risk of immediate cessation orders (s 10(1)(d)-(f)).

Respond promptly to inspector orders and appeals: if an inspector gives an order under s 10, assess it promptly. Orders affecting amenity (s 10(1)(e)) can be reviewed at SACAT if an application is made within one month (s 11(1)-(2)). For other orders, the statutory defence to prosecution requires demonstrating that the order was not justified by its purpose (s 10(3a)). Non-compliance risks monetary penalties, default daily penalties per s 24A, and recovery of Crown-incurred remedial costs under s 10(4)-(6).

Manage miners’ inspector arrangements: allow miners to appoint miners’ inspectors, facilitate their access, and ensure procedures exist for recording and handling miners’ inspectors’ reports (s 12(1)-(5)). Recognise the statutory protection and status provided by s 12(5) under the Workmen’s Compensation Act 1971 for miners’ inspectors.

Control conflicts of interest in inspector appointments: if participating in inspector appointments (e.g., in related advisory or consultative processes), ensure persons acting as inspectors meet the statutory disqualification criteria requirements (s 8) or have Ministerial authority if exceptions are necessary. Acting while disqualified attracts a penalty (s 8(2)).

Implement safety systems aligned to possible regulations and incorporated codes: s 18(2a) allows regulations to incorporate WHS-approved codes and other documents. Ensure site policies, standard operating procedures and training align with WHS codes of practice and with any mining-specific regulations made under s 18 that have been published. Areas to cover include ventilation, explosive handling, winding machinery testing, shafts, sanitation, waste handling and restoration, as identified in the Schedule.

Control confidential information handling: when inspectors or the regulator obtain trade processes or financial information the Act restricts disclosure except in limited permitted ways (s 9). Implement clear protocols on information sharing, secure storage, and consent procedures where disclosure to third parties might be contemplated. Ensure authorised disclosures to the Minister or for legal proceedings are properly logged.

Prepare for emergency cessation and evacuation: develop and practise emergency response and evacuation procedures given inspectors’ power to order immediate cessation and departure where unsafe (s 10(1)(f)). Ensure rescue and ambulance appliances and training comply with the types of requirements listed in Schedule item 8 (accidents) and Schedule item 7 (prevention of accidents), subject to what the regulations ultimately require.

Maintain certification, testing and maintenance: implement regular testing and maintenance regimes for winding ropes, chains, brakes, cages and other winding appliances; maintain records as may be required (Schedule item 17). Ensure persons in charge of declared machinery have required certification and medical examinations as the regulations may direct (Schedule item 26 and item 17(c)).

Engage with the Minister and inspectorate appropriately: where remedial work is necessary and the owner cannot or will not carry it out, the inspector with Ministerial approval can arrange and recover costs (s 10(4)-(6)). Engage early with the inspector and the Minister to seek approvals, provide proposals, or negotiate timing to avoid being subject to works carried out at the owner’s expense.

Monitor regulatory updates and incorporated codes: because regulations can incorporate external documents by reference (s 18(2a)), subscribe to updates from the Department responsible for mining regulation, WHS codes updates, and the Government Gazette for newly published regulations. Regulatory changes can materially alter compliance obligations without amendment to the Act itself.

Legal and evidentiary readiness: maintain documentary evidence of compliance activities, maintenance, training, and communications with inspectors. Note the evidentiary presumption under s 10(6) regarding chief inspector statements of costs; keep contemporaneous records that can rebut any presumption if required.

Understand prosecution timing and prepare defences: be aware of prosecution time limits (s 19(2)) and that only inspectors or Minister-authorised persons may commence proceedings (s 19(1)). Prepare procedures for rapid legal review upon receipt of notices or orders, and gather evidence early to meet potential onus-shifting obligations in s 22(a) and to prepare for the defence under s 10(3a) where appropriate.

Insurance and compensation alignment: ensure insurance arrangements and workers’ compensation coverage align with the deeming provision for miners’ inspectors (s 12(5)) and with the potential consequences of prosecutions and remedial cost recovery under s 10. Also consider the Minister’s power to redistribute fines to injured persons (s 21) when assessing financial exposure.

Communicate with workforce and stakeholders: educate staff and contractors about the Act’s inspection powers, miners’ inspectors process, confidentiality obligations, and the need to avoid obstructing an inspector (s 13). Document training and make sure personnel know how to respond to inspectors and where to escalate matters internally.

By implementing governance, recordkeeping, technical compliance (ventilation, explosives, machinery testing), emergency preparedness, and a proactive engagement posture with inspectors and regulators, an owner or operator will reduce regulatory risk consistent with the duties, enforcement mechanisms and review routes established by the Act.