7 In addition, the prosecutor relied upon a Factual Report of Inspector Patton dated 20 October 2003; 20 colour photographs and the WorkCover Code of Practice, Excavation Work 2000. A certificate of prior convictions was also provided to the Court which disclosed one prior conviction in 1997.
8 The defendant tendered a affidavit of Fiona Hackett, OH&S Co-ordinator, of the defendant, who was not required for cross-examination. Attached to Ms Hackett's affidavit were 39 annexures which included the defendant's Concept Plan of the area in which pipes were to be removed and a new box culvert installed; the Project Plan; a Site Induction Plan signed by employees and contractors who were to work on the site; a Hazard Checklist; an Environmental Checklist; a Weekly Program required to be completed by the supervisor of the construction crew; part of the defendant's Occupational, Health, Safety and Rehabilitation ("OHS&R") system which documented a system with respect to "Trench Works"; a Revised Excavation Work Guidelines; a Safety Checklist completed by Mr Burke dated 15 July 2003; the Construction Supervisor, Mr Mann's Training History and courses attended; the defendant's Workplace Inspection Procedure; the full training history of Mr Burke, Mr Maloney and Mr Banwell; an amended Site Risk Assessment Form; the Works and Services Safety Committee Minutes for 15 October 2003 which amended the Trench Work Procedure; the OHS&R Manual; the OH&S Risk Management Procedure; the current OH&S Policy; OH&S Committee Responsibilities and Structure; OH&S Consultation Policy; documented OH&S Strategy; the Workplace Incident Procedure and the On-site Emergency Procedure.
9 Ms Hackett gave evidence of her duties and responsibilities as OH&S co-ordinator and listed numerous OH&S courses that she had attended. She stated that the defendant administers approximately 4,660 square kilometres and is responsible for matters traditionally associated with Local Government, such as parks, gardens, aquatic leisure centres, roads, social services, libraries, together with water, sewerage and drainage functions.
10 The defendant employs approximately 828 full-time employees and over the period of any one year engages hundreds of contractors, and in turn sub-contractors and their employees who are involved in providing an extensive range of services to the defendant.
11 Ms Hackett deposed that the City Services Group is responsible for managing the Council's assets by planning and arranging construction and determining ongoing maintenance. The reporting structure of the City Services Group was set out which showed that the Director of this Group reported to the General Manager of the defendant.
12 Ms Hackett then dealt with the project which is the subject of the prosecution stating that a project plan was developed which included site induction, hazard assessment, cost estimates and weekly program. A traffic management plan also formed part of the Project Plan.
13 Ms Hackett's evidence in respect of site induction was that on 17 and 18 July 2003, Mr Burke, the Ganger, inducted seven employees and contractors who would be working on the Project. This included Mr Manns and Mr Maloney. Each of the employees and contractors who were given a site induction document and signed a register in the project plan. Discussions during the induction included a briefing of the Project, risks and control measures understanding of workers' roles and responsibilities in achieving the aims of the Project and utilising on the Hazard Checklist.
14 The Hazard Checklist in the Project Plan listed a number of hazards that had been incorporated into the plan prior to commencing work. One of the hazards listed was "trench work" and control measures stated in part to "bench trench where required".
15 Ms Hackett's evidence was that she understood that Mr Manns had advised WorkCover that he did not believe that the excavation required benching due to the width of the excavation being approximately six metres and because of the dry compact nature of the soil in the excavation. The Project Plan also contained a further Hazard Checklist which was to be completed by the Ganger on site. The crew that were to undertake the Project, completed a Risk Assessment prior to commencing the Project, filling out a table listing potential hazards and appropriate controls for each hazard. The Checklist was completed by Mr Burke.
16 On 15 April 2003, in response to the Risk Assessment, Mr Banwell requested that a "dial before you dig" call be placed before work started on the Project. This call was made and authority was given to proceed.
17 An Environmental Checklist also formed part of the Project Plan. The Checklist was completed by Mr Manns, the Construction Supervisor, on 17 July 2003. Mr Manns wrote the letter "Y" in the box next to the word "vibration" to indicate that the crew would "ensure compaction and excavation are at safe distances".
18 Inspection and testing documentation and the completion of a weekly program was also incorporated into the Project Plan. The weekly plans gave a running order of the tasks to be undertaken during the week.
19 Ms Hackett's evidence was that at the time of the incident, the defendant had a documented system with respect to "trench works" which formed a part of the Council's OHS&R System. Following the incident, revised "Excavation Work Guidelines" were developed, discussed and implemented. Since the incident, as part of the continual improvement process, the Excavation Work Guidelines have undergone a number of reviews. In Ms Hackett's opinion, the Revised Excavation Work Guidelines would make such an incident, as occurred, less likely because more information is provided; more attention is given to all aspects of risk assessments of the work; reference is made to the Code of Practice and the previous protocol came from a number of different sources. The Revised Excavation Work Guidelines draw all information together in one document. The object of the Excavation Work Guidelines are stated as follows:
The objective of these guidelines is to assist employees to properly plan any excavation work, thus ensuring a safe system of work and appropriate control measures are implemented to prevent persons being injured. …
20 Ms Hackett deposed that parts of the Revised Excavation Work Guidelines were drafted by extracting relevant information and diagrams from the WorkCover Code of Practice for excavation and the Occupational Health and Safety Regulation 2001. This includes a segment relating to the "zone of influence", an area around an excavation which the Code of Practice states should be considered before starting excavation work. The zone of influence is described as being "the volume of soil around the excavation affected by any external load."
21 The final page of the Revised Excavation Work Guildelines refers to work performed by excavators. This states:
Note: for some site locations it may be appropriate for a backhoe to encroach within the zone of influence and place a front bucket of sand in a trench. … The operation and excavation wall must be constantly monitored by the site supervisor.
22 The Guidelines provide for employees to "continually reassess the conditions of the excavation and bring any changes to the attention of their supervisors". Supervisors responsibilities within the defendant include:
"Ensuring employees on the excavation sites are properly inducted onto the site, aware of the hazards, understand the system of work and able to provide input to the operation. Continually reassess the conditions of the excavation and take action as appropriate…"
23 Ms Hackett's evidence was that Mr Burke and Mr Manns acted in accordance with these obligations. Ms Hackett stated that on 15 July 2003 Mr Burke completed a Safety Checklist Form issued by the defendant for temporary sites. This form was checked and noted by Mr Manns on 17 July 2003. The Safety Checklist did not identify any unsafe work practices or issues. On 17 July 2003, a further Safety Checklist was conducted by Mr Manns on the Plan.
24 Ms Hackett's evidence was that the defendant actively encourages toolbox talk meetings as part of its safety management system. A toolbox talk meeting was held at 9.00 am on 18 July 2003, the day that the incident occurred. The talk was attended by Messrs Burke, Manns, Rumble, Maloney, Cramer and Banwell. Ms Hackett stated that she believed the following issues were discussed at the toolbox meeting: site safety; hazard prevention; risk management; scope of project; the excavation task; the role of the excavator operator and escape routes.
25 Ms Hackett then gave evidence regarding the periods that the employees involved in the incident had been employed by the defendant together with the various training courses that they had undertaken, particularly those relating to occupational health and safety. Mr Manns and Mr Burke have both been employed for approximately 20 years by the defendant, Mr Maloney for approximately eight years and Mr Banwell approximately two and a half years.
26 Ms Hackett deposed that immediately after the incident Mr Burke exited the excavation and took some photos of the dislodgement and returned to the excavation once the excavator had removed the dirt. Mr Manns, Mr Maloney and Mr Burke continued work after the dislodgment. Mr Maloney and Mr Burke finished work at their normal finish time of 3.30 pm. However, the Supervisor, Construction Engineer and Contractor continued to work until 5.00 pm to ensure the site was safe for the general public. Mr Burke and Mr Maloney completed an Incident Report Form on 21 July 2003.
27 Investigations into the incident were conducted by the OH&S Officer and the Chairman of the Asset Construction Safety Committee with Ms Hackett assisting in the process. On 21 July 2003, a WorkCover Incident Report Form was completed and forwarded to WorkCover. No improvement notices or directions were issued by WorkCover. Following the incident, the defendant's Site Risk Assessment Form ("SRA") and Trench Work Procedure ("TWP") were reviewed and amended in consultation with the OH&S Committee.
28 Ms Hackett deposed that at the time of the incident the defendant had a documented Occupational Health, Safety and Rehabilitation Manual ("OH&S Manual"). Copies are kept in the Supervisor's office and car and a copy is kept in each crew's work truck. Copies of the Manual had been provided to Mr Manns, Mr Keech, Mr Burke and Mr Banwell. Documentation regarding trench work forms part of the OHS Manual. The OH&S System Procedure which forms part of the Manual was reviewed in April 2005 and comprises 13 elements. These elements include, but are not limited to management responsibility for OH&S; document control; training; OH&S risk management; OH&S audit, inspection and testing.
29 At the time of the incident, the defendant had an OH&S Policy in place. This policy was adopted in 1995 and has been reviewed and amended on five occasions since its inception. It is currently under review. The policy clearly expresses the defendant's commitment to safety in the workplace and states that implementation and management of this system will be carried out in consultation with management, OH&S Committees and relevant employees within the defendant. The OH&S Policy is located on the defendant's OH&S Intranet and distributed to all employees during their induction and OH&S training sessions. The Policy is also located on all notice boards in the defendant's offices and in the OH&S Manual.
30 Ms Hackett's evidence was that OH&S Committees have been formally established by the defendant for the purpose of dealing with matters related to workplace health and safety. An OH&S Safety Committee was established for asset construction and management amongst other areas to assist in the consultation process between the OH&S Committees. It implemented an OH&S Consultation Policy in August 2002.
31 Ms Hackett deposed that since 1995 the defendant has had a documented OH&S strategy. The purpose of the strategy is to provide the mechanisms and processes for the efficient and effective implementation of the defendant's policies dealing with OH&S. Each month, the Group Directors receive an OH&S Status Report which outlines any incidents, current safety commitments and the status of major OH&S projects. The report also gives an update of Lost Time Injuries for the defendant's employees for the current and previous months. The defendant's Lost Time Injuries was reduced by 16% in 2004/2005.
32 The defendant is currently seeking to expand its OH&S resources and is in the process of recruiting a dedicated OH&S officer. The defendant has received a range of awards in respect of a number of its systems.
33 As a self insurer the defendant participates in WorkCover's "Self Insurer OHS&R Audits". This involves an auditor from WorkCover auditing various parts of the defendant at various times of the year. The defendant uses this audit process to identify any areas that require improvement and to prepare an action plan with timeframes and to nominate managers responsible for ensuring improvements are implemented.
34 In addition to the external audit by WorkCover, the defendant has its own internal auditing system. The defendant also has a comprehensive documented workplace incident procedure which has been in place since 1996. The procedure set out in this document was followed in respect of the incident.
35 Ms Hackett deposed that at all times, the defendant and its representatives had co-operated with WorkCover and that the defendant deeply regrets that the incident occurred and the breach of the Act. Her evidence was that the defendant strives to ensure an accident free workplace and is committed to the process of continual improvement.
Submissions of the Parties
36 Counsel for the prosecutor, Ms P E McDonald, submitted that the principles of sentencing adopted by the Court for offences under the Act involve a consideration of both objective and subjective factors relevant to the offence and the offender. Counsel referred to Morrison v Powercoal Pty Ltd & Anor (No 3) [2005] NSWIRComm 61 and emphasised that the two primary factors in the assessment a penalty are:
(i) the nature and quality of the offence, that is, the objective seriousness of the offence charged; and
(ii) subjective factors.
37 It was submitted that subjective factors are subsidiary to the objective factors and should not be permitted to produce a sentence which fails to adequately reflect the seriousness of the offence: Lawrenson Diecasting Pty Ltd v WorkCover Authority of New South Wales (Inspector Ch'ng) (1999) 90 IR 464 at 475.
38 Counsel observed that the risk to health and safety of employees of the defendant, was the risk of the excavation collapsing when employees were working in the excavation. This risk, it was submitted, was reasonably foreseeable and had been foreseen by the defendant, as demonstrated by its Project Plan.
39 Counsel submitted that the gravity of the injury actually resulting from the breach does not, of itself, dictate the amount of penalty. Nevertheless, the occurrence of death, or serious injury, manifests a degree of seriousness of the relevant detriment to safety: Ferguson v Nelmac Pty Ltd (1999) 92 IR 188 at 204. Counsel submitted that there was the potential for serious injuries to occur from the collapse of excavations.
40 In this regard, however, it was conceded that the aggravating factors to be taken in s 21A(2)(g) of the Crimes (Sentencing Procedure) Act 1999 ("the CSP Act") were not available.
41 Counsel submitted that the seriousness of the offence is demonstrated by the simple and straightforward steps the defendant would have been able to implement to meet its obligations under the Act. A number of simple remedial steps were available to the defendant and introduced after the incident.
42 Counsel submitted that in accordance with s 21A(2)(d) of the CSP Act, the defendant's prior conviction could be taken into account in determining the appropriate sentence for the offence.
43 Counsel submitted that both general and specific deterrence should be given weight in a sentencing process.
44 Ms McDonald acknowledged that the defendant had entered a formal plea of guilty to the amended charge at the earliest opportunity and also had co-operated with WorkCover.
45 The prosecutor sought costs and a moiety of the fine.
46 Mr J Phillips SC, who appeared for the defendant, provided the Court with a written outline of submissions. Senior counsel's submissions can be conveniently summarised as follows:
(i) in assessing penalty, the objective features of the case are of primary significance in sentencing: Lawrenson Diecasting Pty Ltd v WorkCover Authority of New South Wales (Inspector Ch'ng) (1999) 90 IR 464 at 475;
(ii) the gravity of the consequences of an accident does not, of itself, dictate the seriousness of the offence. However, the gravity or otherwise of the potential risk to safety flowing from a breach is relevant as a measure of the gravity of the breach and the culpability of the defendant: Tyler v Sydney Electricity (1993) 47 IR 1 at 5; Inspector Hannah v Wonar Pty Limited, (unreported, Fisher CJ, CT 90/1214, 30 June 1992) at 9.
(iii) the task of a court is to assess the relevant seriousness of the offender's particular offence in relation to a worst case for which the maximum penalty is provided. Having determined the relative seriousness of the offence, the penalty to be imposed is that which approximately correlates upon the scale of penalty set by the legislature from zero to the maximum: Camilleri's Stock Feeds Pty Ltd v Environment Protection Authority (1993) 32 NSWLR 683 at 698 - 699; Department of Mineral Resources of NSW (McKensey) v Kembla Coal & Coke Pty Ltd (1999) 92 IR 8 at 20.
(iv) in respect of general deterrence, it was submitted it was relevant where the offence in question is prevalent in society and represents a serious threat to the community. Counsel also referred to the principles set out in Capral Aluminium Pty Limited v WorkCover Authority (NSW) (2000) 49 NSWLR 610 at 643 and at 644 in respect of general and specific deterrence.
(v) mitigating factors and any other objective or subjective factor that affects the relevant seriousness of the offence are to be taken into account in sentencing. A reference was made to various authorities in this regard including Riley v Australian Grader Hire Pty Limited (2001) 103 IR 143; Veen v R (No 2) (1988) 164 CLR 465; Markarian v R (2005) 215 ALR 213 and Inspector Yeung v Howie Herring & Forsyth Pty Limited & Anor [2005] NSWIRComm 266.
47 Counsel submitted that there are no aggravating factors in relation to the defendant as might increase the offence (s 21A(1)(a) of the CSP Act) but there are many mitigating factors which are available to reduce a penalty which would otherwise apply.
48 Counsel referred to Haynes v CI & D Manufacturing Pty Ltd (No 2); Callaghan v CI & D Manufacturing Pty Ltd (No 2) (1995) 60 IR 455 at 456 - 457, a decision of the Full Bench of the then New South Wales Industrial Court, submitting that when one considers the operations of the defendant from 1948 when it was formed, and the number of industrial transactions that would have taken place, its record is excellent, save for one instance before the Chief Industrial Magistrate when it was fined $2,000 in 1997.
49 Counsel further submitted that upon a proper analysis, this was not a serious accident. The workers were engaged in a very wide excavation, some six metres in width. That fact itself reduced the likelihood that collapse could cause any serious injury. Such a wide excavation provided ample opportunity for any workers to retreat if a wall slipped. This had to be contrasted to a narrow trench where there is less opportunity for the workers to remove themselves quickly from the risk of injury.
50 The work was being conducted by an experienced crew. Mr Phillips placed reliance upon the affidavit of Ms Hackett and the extensive occupational work and safety systems and procedures, as documented by the extensive attachments to her affidavit.
Consideration
51 The sentencing principles to be applied in matters such as this were recently restated by the Full Bench in U-RECT-IT Pty Ltd v WorkCover Authority of New South Wales (Inspector de Silva) [2004] NSWIRComm 266, where the Full Bench stated at [11]:
The sentencing principles to be applied in the assessment of appropriate penalties under the Act have been considered on many occasions by this Court, including Full Bench level, and are well known. We refer by way of example to Lawrenson Diecasting Pty Ltd v WorkCover Authority of New South Wales (1999) 90 IR 464 at 474-475 and Fletcher Construction Australia Limited v WorkCover Authority of New South Wales (1999) 91 IR 66 at 77. The starting point is the objective seriousness of the offence and the need to accommodate both general and specific deterrence. The maximum penalty that may be imposed is to be reserved for the most serious offence, that is, the worst possible case. Only after an appropriate penalty has then been formulated are subjective matters to be taken into account, which include factors such as cooperation with the investigation and inquiries of the WorkCover Authority, expressions of remorse and contrition, steps taken to remedy the matters giving rise to the breach and the general approach to occupational health and safety matters and attention to safe working practices by a defendant. This list is not intended to be exhaustive but is indicative of the matters which should be taken into account. Furthermore, a defendant will be entitled to a discount of up to 25 per cent for entering a plea of guilty at the earliest possible opportunity. These subjective factors are then aggregated so that a discount is applied to the penalty assessed by reference to the objective factors, resulting in the penalty to be properly imposed.
52 In this matter, in my view, the risk to the health and safety of employees was the risk of the excavation collapsing when employees were working in the excavation. The dangers associated with work performed in excavations are obvious. The excavation measured approximately six metres wide; 14 metres long and between 1.8 - 2.1 metres deep. In my view, there was a serious risk brought about by deficient engineering, which resulted in the excavation not being benched.
53 The risk to health and safety was, in my view, reasonably foreseeable and it was foreseen by the defendant but there was a deficiency by the defendant in endeavouring to control this risk. The defendant's system concentrates on trenches and ignores the risk that can arise in respect of excavations, particularly where the excavation is deeper than 1.5 metres and benching is not undertaken. Fortunately, both the employees who were in the excavation at the time of the collapse of the wall were able to evade the consequences and avoid injury.
54 That the defendant foresaw the risk is demonstrated by its Project Plan. As part of the Project Plan developed by the defendant for this project, the Hazard Checklist identified the following hazards:
"TRENCH WORK Work generally less than 1.5m (bench trench where required). All holes/trenches protected by safety fence. Hard hats essential…….