The role of Roche Mining Pty Ltd at the Dartbrook Mine
15. Between about April 2002 and May 2004, Roche Mining was contracted by Anglo Coal (Kayuga Management) Pty Ltd to perform underground mining work at the Kayuga Mine associated with the development of workings in the Kayuga Seam.
16. Roche Mining carried out work in relation to the development of the Kayuga Seam in accordance with a contract entitled "Contract for the Inseam Development of the Kayuga Underground Mine - KC340 - April 2002" (the Inseam Contract ), and another contract entitled "Contract for the Decline Drift Development of the Kayuga Underground Mine Contract KC380 September 2002" (the Decline Drift Contract ).
17. After December 2003, Roche Mining continued to perform underground mining work under the Inseam Contract at the integrated Dartbrook Mine associated with the development of the Kayuga Seam.
18. At all material times Roche Mining employed Frank Fulham as its Project Manager with respect to works being performed underground in the Kayuga Seam under the Inseam Contract.
19. At all material times Roche Mining employed Douglas Ashcroft ( Ashcroft ) as its Production Superintendent with respect to works being performed underground in the Kayuga Seam. Prior to December 2003, Ashcroft was the Undermanager in Charge for the Kayuga Mine appointed pursuant to the CMRA. Prior to December 2003, Ashcroft in his capacity as the Undermanager in Charge, reported to Clifford who was the Mine Manager, appointed pursuant to the CMRA, for the Kayuga Mine from 3 November 2003 to 12 December 2003.
20. At all material times Roche Mining employed Wayne Wallace ( Wallace ).
21. At all material times Wallace was appointed by Clifford, in Clifford's capacity as mine manager of Dartbrook Mine, as a Deputy pursuant to section 42 of the CMRA.
22. At all material times, Roche Mining employed James Adams ( Adams Jr ) as an underground mine worker to work at the Dartbrook Mine.
23. At all material times, Adams Jr was a member of an underground development crew assigned by Ashcroft to a pillar split at the 1-2 cut-through in the Kayuga Seam.
24. At all material times, Roche Mining employed Jim Adams ( Adams Sr ) as an underground mine worker at the Dartbrook Mine.
25. At all material times, Adams Sr was a member of the abovementioned underground development crew assigned by Ashcroft to a pillar split at the 1-2 cut-through in the Kayuga Seam.
26. At all material times, Roche Mining employed Hamish Lister ( Lister ) as an underground mine worker at the Dartbrook Mine.
27. At all material times, Lister was a member of the abovementioned underground development crew assigned by Ashcroft to a pillar split at the 1-2 cut-through in the Kayuga Seam.
28. At all material times, Roche Mining employed John Daowlis ( Daowlis ) as an underground mechanical tradesperson (fitter) at the Dartbrook Mine.
29. At all material times, Daowlis was a member of the abovementioned underground development crew assigned by Ashcroft to a pillar split at the 1-2 cut-through in the Kayuga Seam.
30. At all material times, Wallace, as Deputy, was the supervisor of Adams Jr, Adams Sr, Lister and Daowlis while they were working at the 1-2 cut- through in the Kayuga Seam.
Background to the Subject Incident
31. Prior to 26 May 2004, as part of the development work relating to the underground workings of the Kayuga and the Wynn Seams, a project was developed to split a pillar at the 1-2 cut-through in the Kayuga Seam. This was done to create a roadway providing more efficient access to the Dartbrook Mine.
32. The pillar split at the 1-2 cut-through in the Kayuga Seam commenced on 26 May 2004. Preparatory work, however, on the 1-2 cut-through began prior to the afternoon shift on 26 May 2004.
33. On 26 May 2004 Ashcroft assigned an underground mining crew to commence work on the Pillar Split at the 1-2 cut-through using a Mitsui S200 Road Header.
34. The "Kayuga Toolbox Discussion" report for the afternoon shift on 26 May 2004 notes that Ashcroft talked to the crew about matters including the following:
"Main West R. Header cut split. Comply Roof Support Rules: Monitor roof closely & support close to face."
35. Thereafter, work continued on the Pillar Split at the 1-2 cut-through in the Kayuga Seam on each consecutive shift until the completion of the night shift on the morning of 28 May 2004.
36. The "Kayuga Toolbox Discussion" report for the day shift on 27 May 2004 notes that Ashcroft talked to the crew about matters including the following:
" Road Header - Soft ground. Go Slow. Cut down clays."
37. On 28 May 2004 Ashcroft assigned a day shift crew to continue working on the Pillar Split with the Mitsui S200 Road Header. That day shift crew consisted of:
· Adams Jr - Mitsui S200 Road Header Operator and Steel Handler on the "gopher";
· Adams Sr - "Cable hand" for the Mitsui S200 Road Header and roof bolter;
· Lister - EIMCO Operator and "roustabout"; and
· Daowlis - fitter.
38. Wallace was the deputy assigned to the Pillar Split panel, responsible for the above day shift crew.
39. At the commencement of the day shift on 28 May 2004 the roof at the Pillar Split had been bolted to within about 0.5 metres of the face.
40. Further, at the commencement of the day shift on 28 May 2004, the heading at the Pillar Split was filled with spoil so that the crew spent the morning up to lunch time cleaning up the spoil left by the night shift crew.
41. After lunch on 28 May 2004, the day shift crew returned to the heading at the Pillar Split. Daowlis, the fitter, went to work on the boot end. The balance of the day shift crew then commenced cutting coal: - Adams Jr operated the Mitsui S200 Road Header; Adams Sr handled the cable; and Lister, the Eimco driver and roustabout, provided general labouring support.
42. When Adams Jr had cut enough coal for between about "one to two mesh", he stopped cutting coal so that the next round of roof support could be erected.
43. The Mitsui S200 Road Header being used to cut the Pillar Split was not fitted with drill rigs.
44. As there were no drill rigs attached to the road header, roof support had to be erected in front of the road header manually.
45. As roof support was to be erected manually, the road header had to be reversed back in the heading from the face a sufficient distance to enable the crew to obtain access to the roof in front of the road header, for the purpose of manually erecting roof support, whilst remaining behind the last line of previously erected roof support (ie. working from under supported roof).
46. After Adams Jr stopped cutting coal, he reversed the road header back in the heading, he lowered the cutting head of the Mitsui S200 Road Header (which had a pineapple shape) to the floor in the centre of the heading and turned the Mitsui S200 Road Header off. After the incident, the Dartbrook Mine Surveyor established that the Mitsui S200 Road Header had been reversed back in the heading so that it's pineapple cutting head was located about 0.2 metres outbye of the last line of previously installed roof bolts.
47. After Adams Jr had turned off the Mitsui S200 Road Header, the isolation switch was engaged and both Adams Jr and Adams Sr tagged out the machine.
48. Adams Jr, Adams Sr and Lister then proceeded to carry the roof bolting equipment and materials inbye of the Mitsui S200 Road Header so that the next line of roof support, consisting of mesh and roof bolts, could be erected.
49. Once the roof bolting equipment and materials were in place, inbye of the Mitsui S200 Road Header, Adams Sr started the manual roof bolter and commenced boring holes in the roof of the heading for the roof bolts.
50. The Mine Manager's Support Rules for the Kayuga Seam, applicable to the Pillar Split being performed at the time of the subject incident, provided for a 4/2 bolting pattern in the roof of the heading. The last line of roof support erected in the heading consisted of mesh held in place by two roof bolts so that the next line of support required by the Rules was to consist of mesh and four roof bolts drilled in across the heading.
51. Prior to the subject incident, Adams Sr bored three roof bolt holes into the roof of the heading starting from the left side of the heading looking inbye. But, no roof bolts were inserted into any of the three roof bolt holes bored by Adams Sr into the roof of the heading prior to the subject incident. Immediately prior to the subject roof fall, Adams Sr commenced drilling a fourth hole in the roof of the heading immediately adjacent to the right hand side of the heading looking inbye.
52. Adams Sr was still in the process of drilling the fourth hole, immediately adjacent to the right hand side of the cut-through looking inbye, when the subject roof collapse occurred.
53. When interviewed, Adams Sr stated that he last saw Adams Jr on the left hand side of the heading (looking inbye). But, Adams Sr did not know and could not say what Adams Jr was doing at the time of the subject roof fall. It is unclear when and where Adams Jr was last seen prior to the time of the subject roof fall, although it appears Adams Jr was positioned under unsupported roof at the time of the roof fall.
54. Immediately after the roof fall, Adams Sr and Lister realised that Adams Jr had been struck by part of the roof fall and was trapped beneath fallen stone in the vicinity of the pineapple cutting head of the Mitsui S200 Road Header, which had been lowered to the floor near the centre of the heading.
55. Adams Jr suffered serious injury as a consequence of the fall and died a short time later as a consequence of those injuries.
Investigation of the subject incident
56. After the event, investigations established that:
· the roof fall extended from the coal face back towards the last series of roof bolts;
· the fall occurred, essentially, across the full width of the heading;
· on the right hand side of the heading, looking inbye, the roof fall terminated at the last series of roof bolts.
· on the left hand side of the heading, looking inbye, the roof fall terminated approximately 200mm in front of the last line of roof bolts; and
· the height of the fall was not uniform. It was thick at the edges, particularly inbye, and rose up to an estimated height of about 1 metre in a dome shape which had its highest point located, approximately, in the centre of the heading (ie. in the vicinity of the pineapple cutting head of the Mitsui S200 Road Header).
57. No roof bolts had been inserted into any of the three roof bolt holes that Adams Sr had pre-drilled across the heading as part of the manual erection of the next line of roof support that was taking place immediately prior to and at the time of the subject roof fall.
58. It was established that Wallace, in his capacity as a Deputy appointed for the Dartbrook Mine, was assigned statutory responsibility for the area in which the pillar split was being performed for the day shift on 28 May 2004. Also, as the Deputy assigned to that area, Wallace was to supervise the development crew working on the pillar split during his shift.
59. In respect of the location of the Mitsui S200 Road Header in the heading whilst roof support was being erected, when questioned after the incident, Wallace stated that "[he] would have liked to have seen it normally further back than that". Wallace gave no direction to any member of the day shift crew regarding the location of the Mitsui S200 Road Header immediately prior to the time the crew commenced work on the erection of the next line of roof support. Wallace was in and around the face area all morning.
60. Adams Sr had pre-drilled a series of holes in the roof rather than inserting a roof bolt as he completed drilling each hole. Wallace did not provide Adams Sr, or any other member of his crew, with directions regarding pre-drilling of holes for roof bolts prior to or on the day of the subject incident.
61. On 28 May 2004, following the subject roof fall, an inspection of the "Deputies' Notice Board" at the entrance to the area of Dartbrook Mine in which the roof collapse occurred established that the following documents were on display prior to and at the time of the subject incident:
· Roof support plans entitled "Kayuga Seam Support Rules" Plan No. 62105 signed by D. Sykes - Manager on 30 May 2002 confirmed by Senior Inspector Anderson on 31 May 2002;
· Roof support plans - entitled "Gate Road Support Rules - Option I - Kayuga Seam" signed by D. Sykes - Manager on 22 May 2003 confirmed by Senior Inspector Anderson on 11 June 2003;
· Safe Work Procedure for Roadheader "No Go" Zones General; and
· A Risk Assessment Document dated 12 December 2002 relating to the Mitsui S200 Road Header
62. Investigations after the event also established that Adams Sr had been employed as an underground mine worker by Roche Mining for about 18 months prior to the subject incident. During that period both Adams Jr and Adams Sr had worked for Roche Mining underground in the Kayuga Seam, working principally on crews assigned to the cutting of a decline drift using the Mitsui S200 Road Header and a hand held roof bolter.
63. During the abovementioned period, Adams Jr had undergone roof bolting and basic strata control training, including in respect of the assessment of strata conditions and installation of support.
64. Adams Sr was not appointed as a roof bolter prior to the subject incident.
65. Adams Jr, Adams Sr, Lister and Wallace were all inducted to work in the workings within Dartbrook Mine pursuant to the Dartbrook Safety Health and Environment ( SHE ) management system. The induction involved Adams Sr, Adams Jr, Lister and Wallace attending both a generic induction training program for NSW coal mining, and a specific induction training program for Dartbrook and Kayuga Mines (and successfully completing an assessment of competency with respect to these training programs). Dartbrook's training program provided instruction on safety policies, procedures and mine rules for Kayuga and Dartbrook Mines.
66. During the course of the investigations conducted by Inspector Alwyn Piggott, Inspector Piggott sought, from both Dartbrook and Roche Mining, all documents purporting to set out the safe work methods with respect to hand roof bolting that applied to and were to be implemented during the course of the subject Pillar Split. The following documents were subsequently produced by Roche Mining:
(i) Standard Work Procedure - Erection of roof support in front of continuous miner or road header - underground coal;
(ii) Kayuga - Standard Work Practice: Hand bolting procedure underground coal; and
(iii) Standard Work Practice - Hand bolting procedure underground coal, SWP KAY 37.
67. During the course of the investigation the second document, "Kayuga - Standard Work Practice - Hand bolting procedure underground coal" was identified by Roche as the applicable procedure. However, this document was not included in a Job Safety Instruction developed with respect to this Pillar Split; this document was not used in pre-shift tool box meetings to instruct the crew in the safe work method to be followed during the Pillar Split; a copy of this document was not available at the work site; nor was the procedure set out therein being followed prior to or at the time of the subject incident; and the procedure set out therein had not been followed, in particular, with respect to the erection of temporary roof support, on other working shifts in which manual roof bolting had taken place in the course of the development of the cut-through.
68. Dartbrook and Clifford cooperated in relation to the investigation conducted by the police and the DPI. In order to assist DPI in its investigation, Dartbrook also made available Mr Mike Caffery as Dartbrook's nominated representative on the DPI investigation team.
Relevant Principles
10 In considering penalty, I take guidance from the reasoning of the High Court in Markarian v R (2005) 215 ALR 213. In that case, their Honours were of the view that the task of sentencing must acknowledge the effect of the applicable legislative provisions (in this case, s8(1) & (2) of the Occupational Health and Safety Act 2000 with ss21A, 22, 23, 34 of the Crimes (Sentencing Procedure) Act 1999). The court, using the "instinctive synthesis" approach, would include an assessment of the objective and individual subjective factors, with the appropriate weight given to each factor. The court could (but not should) give a degree of deduction in penalty to some element in the consideration, in such circumstances as where it better serves the interests of transparency, which element should be narrowly confined (for example, the utilitarian value of the plea).
11 Spigelman CJ in R v Thomson; R v Houlton (2000) 49 NSWLR 383, correctly, given the consideration in Markarian, recognised this "instinctive synthesis" approach to sentencing saying at [57]:
The instinctive synthesis approach is the correct general approach to sentencing. This does not, however, necessarily mean that there is no element which can be taken out and treated separately, although such elements ought be few in number and narrowly confined. As long as they are such, their separate treatment will not compromise the intuitive or instinctive character of the sentencing process considered as a whole.
12 Proper regard is had to express legislative provisions and to the relevant statutory regime (Markarian at [27]). The object of the Act is to compel attention to occupational health and safety issues so that persons are not exposed to risks to their health, safety and welfare at the workplace. Of particular significance is the effect of s21A of the Crimes (Sentencing Procedure) Act 1999. Section 21A sets out factors that the court is to take into account in any sentencing hearing.
13 In assessing the objective seriousness of the offence of each defendant, the Court must consider the "the nature and quality of the offence" (Lawrenson Diecasting Pty Ltd v WorkCover Authority of New South Wales (Inspector Ch'ng) (1999) 90 IR 464 (at 474) ad idem with the view expressed in Markarian).
14 The corporate defendant (known as Dartbrook) was part of a joint-venture which held mining leases. It managed, controlled and operated coal mining at various sites. It had sub-contracted with Roche Mining Pty Limited (also prosecuted - see Rodney Dale Morrison v Roche Mining Pty Limited [2007] NSWIRComm 276) to join together the Kayuga seam with an adjacent seam it also controlled. In December 2003, the corporate defendant assumed partial control of the mine through its mine manager until May 2004 when it assumed complete control as Roche employees no longer held any undermanager roles. Some facts are of particular significance in the circumstances where the corporate defendant had sub-contracted out the mining work to Roche who employed the mining crew working to join the two coal seams. At the time of the incident the corporate defendant, while it had assumed statutory control of the mine through its Mine Manager, was obliged to ensure the safety at its place of work of a mining crew who were employees of the sub-contractor.
15 On 28 May 2004, the employees of Roche Pty Limited were performing a manual roof bolting task as part of a pillar split at the 1-2 cut through. The task is usually performed mechanically with equipment on the front of a Continuous Miner Machine. However, by agreement between Roche and the corporate defendant, the task of the roof bolting was being performed "manually" in front of the Road Header being used for the pillar split. The crew were roof bolting after a cut. Evidence after the incident revealed the Road Header used for the cut had not been reversed sufficiently back from the face and in the heading to allow all roof bolting work to be conducted under roof support. Further, the procedure adopted for roof bolting by the relevant miner was not the correct procedure (safe working procedure required each bolt be placed into each hole immediately after drilling). Three bolt holes had been drilled and no bolts inserted. As the fourth bolt hole was being bored, a roof collapse occurred. The roof fall caused the death of one of the mining crew who was not standing under roof support.
16 In December 2003, the individual defendant, Mr Clifford, had taken control of the mine as Mine Manager. Therefore, the employees were working under their employer, Roche, but the Mine Manager and Undermanagers were employed by companies associated with the corporate defendant and were acting on its behalf. The corporate defendant had overall control of the mine at the time of the incident. The Mine Manager had been in control of the mine for five months. The Deputy in Charge of the shift at the worksite was, however, an employee of Roche. After the incident, when the relevant Safe Work Procedure for manual roof bolting was called for, three separate documents were produced. Further, it was a requirement that the safe work method was to be published on the shift notice board and referred to at toolbox meetings. Neither occurred.
17 As it assumed responsibility for the site, the corporate defendant had given special attention to its obligations under the Occupational Health and Safety Act 2000. It had taken extensive steps to co-ordinate the safety systems to be followed in the transfer of control of the Mine between itself and Roche. The incident reveals there were some difficulties with the integration of the Kayuga seam into the Dartbrook mine and a thorough check of the safety measures in place for each specific task would have revealed the inadequacy.
18 In the six months after the corporate defendant's Mine Manager had assumed control of the work site, a new shift management system had been introduced whereby:
· each Undermanager was required to develop a plan for the oncoming shift and ensure toolbox talks were held;
· the Undermanager was required to review the plan against actual shift experience;
· each Deputy was required to discuss the status of operations in his production district with the control room operator and consult with the outgoing Deputy;
· protocols for information sharing and communication between Roche and Dartbrook were introduced.
19 There was however no check made of the way work was to be done on the pillar split. There was no safe work procedure for work on the pillar split and the employee carrying out the roof bolting had not been properly qualified in "manual" roof bolting - the skill required from him on the day. Further, an examination of this new shift management system in the conduct of the investigation reveals (through the copies given to it of shift meetings) the corporate defendant knew of the susceptible condition of the roof; was not aware the Deputy allowed the task to be performed against known safe work practice (drilling of roof holes without the insertion of bolts); was not aware the relevant miner was not qualified to perform his task. While the protocols may well have been in place, the effectiveness of their performance in ensuring safe working is brought into question.
20 In Capral Aluminium Ltd v WorkCover Authority of New South Wales [2000] 49 NSWLR 610, the Full Bench held at [82]:
The existence of a reasonably foreseeable risk of injury will necessarily result in the offence being more serious in nature. . . .