In the present case the allegation that there was a failure by the defendant to ensure the health, safety and welfare at work of all its employees and in particular Mr Leisemann is indicative of the broader basis of the prosecution.
67 Another feature of the defendant's submission was its concentration on giving directions to Mr Leisemann not to perform "electrical work". It is to be observed, however, that not all of the particulars of the alleged breach proceed on the basis that employees working on air conditioning units are engaged in "electrical work": some of the particulars, such as particular (b) combines tasks involving electrical work with tasks including work on electrical air conditioning units and thus may not be electrical tasks. In this respect, two lines of authority in this jurisdiction are relevant: In WorkCover Authority (Inspector Egan) v Atco Controls Pty Ltd (1998) 82 IR 80 at 85, Hill J stated:
This case is yet another illustration of the need for employers to exercise abundant caution, maintain constant vigilance and take all practicable precautions to ensure safety in the workplace. It is essential that the approach be a pro-active and not re-active one; employers should be on the offensive to search for, detect and eliminate, so far as it is reasonably practicable, any possible areas of risk to safety, health and welfare which may exist or occur from time to time in the workplace.
Allied to that well known approach is the statement of the Full Bench in Riley v Australian Grader Hire Pty Ltd (2000) 103 IR 143 at [15]:
... Section 15 of the Occupational Health and Safety Act requires employers to be diligent and proactive to ensure the safety of employees. Those obligations are not diminished because of the error or negligence of an employee, although such matters may reflect on the degree of culpability of the employer for the purposes of sentencing. We note the following observations of Bauer J in WorkCover Authority of New South Wales (Inspector Twynam-Perkins) v Maine Lighting Pty Limited (1995) 100 IR 248 at 257:
Much of what was urged by Mr King was directed to showing that the worker who was killed knew of, and therefore ought to have avoided the exposed electrical connections. In one sense such a submission militated against the position of the defendant; the very purpose of the Act was to introduce safe working practices so that accidents are prevented. The Act was designed to protect against human errors including inadvertence, inattention, haste and even foolish disregard of personal safety as well as the foreseeable technical risks in industry.
It is against these standards that the evidence is to be judged in the present matter.
68 There were certain aspects of the defendant's submissions to the effect that it was not known what Mr Leisemann was doing in suite 601 on the day of the accident and to the extent that there is a suggestion in that type of submission that it is unknown what happened to Mr Leisemann, it is appropriate to deal with the state of the evidence as it now stands in relation to that matter. The Agreed Statement of Facts accepts that Mr Leisemann was, at various times, engaged in adjusting air conditioning in individual rooms at the Club premises to reflect the change of season and in response to requests from guests. Mr Rayner's evidence was that on the day of the accident he was told by Mr Nelson that Mr Leisemann had been going around the building adjusting the air conditioning units in each room ready for the oncoming summer. In evidence before the Coroner, Mr Nelson did not dispute making that statement although apparently having no clear re-collection of it: he accepted that if that statement was made it was in the context of changing filters and the like rather than performing electrical work. Mr Burgess' evidence was that the only way in which the unit in suite 601 could be adjusted was from within the unit and there was no separate external adjustment device on the wall that anybody might use, including guests, to adjust the temperature. Mr Rayner's evidence, after an examination of the room, was that there were no other exposed energised wires in the room other than those on top of the valve inside the air conditioning unit. In the room with Mr Leisemann were tools, including a separate temperature gauge, screwdrivers and pliers that were consistent with removing the front of the air conditioning unit and undertaking work upon that unit, including working on or around the valve. The autopsy found that Mr Leisemann was electrocuted and had burns to his body but found no other physical condition that was consistent with his death.
69 Having regard to those matters, the present state of the evidence establishes that Mr Leisemann, in performing his functions as maintenance manager, was adjusting air conditioning units on the day of the accident because of seasonal changes and was engaged in this work in suite 601 when he died by electrocution. As the evidence presently stands, Mr Leisemann had available and was using at least some of the tools in the room to perform work on the air conditioning unit and during the course of performing that work came into contact with the energised points on top of the valve inside the air conditioning unit and was electrocuted.
70 The first particular alleges a failure to carry and implement an adequate risk assessment for work on air conditioning units and particularly the task of adjusting thermostats on the air conditioning units. At its highest, the defendant says the evidence shows that Mr Leisemann was directed not to perform electrical work and that in those circumstances there was no occasion to make arrangements for and to ensure employees carried out a relevant and adequate risk assessment for working on the air conditioning units, including the adjustment of the thermostats. The evidence was said to show that all three members of the maintenance staff performed the task of changing filters and adjusting the thermostat. The evidence also showed that the filter could be changed without exposing the workmen to energised power points or contacts. The evidence did not show that adjustment of the thermostat inside the air conditioning unit required the removal of the cover over the valve thus exposing energised contact points.
71 In relation to Mr Nelson's evidence that he had instructed Mr Leisemann not to perform electrical work, he was unable to place when this occurred and when further pressed concluded that instruction was only given during Mr Leisemann's interview in response to the advertisement placed in the Sydney Morning Herald. Mr Nelson's evidence was that it became evident during that interview process that Mr Leisemann did not have qualifications as an electrician and it was in that context that the instruction was given. At that stage, Mr Leisemann had not been employed and in whatever terms the discussion took place it could hardly have constituted an instruction to an employee. In further evidence it became clear that Mr Nelson expected Mr Leisemann to pass this instruction on to other members of the maintenance team although he may not have been, in terms, instructed to do so. This is the only evidence of an "instruction" not to perform electrical work. It is important, at this point, to recognise that the first particular does not refer to risk assessments for "electrical work" but for work on air conditioning units.
72 The evidence demonstrates that at least some of the maintenance staff did perform electrical work and were expected to do so. In the advertisement for the position of maintenance manager, a desirable qualification was "electrical experience". In terms, the advertisement did not ask for electrical qualifications and it appears that the previous maintenance manager had air conditioning experience but the extent of that experience was not spelt out in the evidence. Mr Burgess was a qualified electrician on the maintenance staff and 30 per cent of his time was occupied in performing electrical work. That work was said to involve a fairly low level of electrical work, including replacement of power points and the like. Either the Voltfinger or a similar testing device had been purchased by a prior maintenance manager and it had only one purpose and that was to test for the presence of a live electric current. The contract with Staniforth did not cover the adjustment of thermostats in room air conditioning units and Staniforth had no recent record over a period of 15 months before the accident of being called in to adjust the air conditioning in individual rooms. It was part of the Staniforth contract to change the air conditioning filters yet the changing of the filters and the adjustment of the thermostat was a task undertaken, at least seasonally, by each member of the maintenance team. The effect of Mr Hoar's evidence was that, on a complaint made to reception by a guest, the maintenance department would be informed about air conditioning temperatures with the expectation that the maintenance department would quickly respond to such complaints.
73 Having regard to the fact that to adjust the thermostat and to remove the filter from the air conditioning units required the opening of the unit and the removal of some parts of the air conditioning unit (for example, the drip-tray and the condenser), the current state of the evidence shows that there was no, or no adequate risk assessment in relation to this task to ensure that the maintenance staff did not take action, such as removing the cover on the valve, for any purpose such as would expose them to the danger of coming into contact with energised contact points. Although Mr Nelson (at the interview) instructed Mr Leisemann to undertake a risk assessment prior to commencing work, Mr Burgess was not aware of any risk assessment undertaken in relation to work on the air conditioning units or a risk management process undertaken prior to the commencement of maintenance or scheduled work. He had never been asked or instructed to perform a risk assessment and had been given no training about undertaking a risk assessment before the accident. Mr Galante had no idea of a risk assessment undertaken regarding maintenance work on a room air conditioning unit.
74 Quite apart from the circumstances in which the direction was said to be given to Mr Leisemann that he should not perform electrical work when he commenced his employment in 2002, there is no evidence of Mr Leisemann or the maintenance team being instructed as to what was meant by "electric work": it was apparently not thought to be electrical work to remove the filter and possibly other parts of the air conditioning unit and to adjust the thermostat but there is no evidence of attention being paid to the danger of removing the cover of the valve for any reason (and perhaps not to perform electrical work but to obtain space to perform other work) while attending to an air conditioning unit.
75 Mr Nelson, in his statement to WorkCover, said that he had instructed the maintenance staff not to work on the air conditioning units except to clean the filters, and that Staniforth had been contracted to perform electrical work on those units because of a lack of staff expertise. The Staniforth contract, however, included matters such as changing filters and checking the water supply as well as checking that the routine operation of switchgear was satisfactory. On the other hand, Mr Burgess and Mr Galante were given no safety instructions. Mr Burgess was not told what electrical work he was or was not to perform. All members of the maintenance team ultimately performed work on the air conditioners, changing filters and adjusting the thermostat. That task could involve removing other items such as the drip trays or the condenser.
76 The evidence does not support the restricted view of Mr Nelson that the maintenance crew were instructed not to perform work on the air conditioning units except for changing the filters. Once it became part of the duties of the maintenance team to enter into the air conditioning unit to perform these tasks there needed to be an appropriate risk assessment developed to instruct them what to avoid while engaged in this task: such a risk assessment would include a warning against moving the cover or removing the cover of the valve while performing work in the unit and/or isolating the power before commencing any work. Having regard to the evidence favouring the prosecutor, that evidence is sufficient to establish a prima facie case that a breach of the Occupational Health and Safety Act has occurred in relation to this particular.
77 The second particular alleged the failure to ensure suitably trained and qualified personnel carried out all tasks involving electrical work, including work on air conditioning units. Mr Nelson's evidence was that there was no written electrical work policy and that maintenance staff were not to do anything other than "light electrical work" - that instruction did not appear as part of a written electrical policy. As previously noted, there was no direct instruction given to the other maintenance staff not to perform electrical work as it was expected that Mr Leisemann would pass that instruction on to them although Mr Burgess was qualified as an electrician and would be unlikely to be given such an instruction. Mr Galante was unaware of the defendant's policy for working "live" - when he worked on air conditioning units he undid the drip tray to change the filter and did so every four or five months. He also adjusted the thermostat but did not perform work on the motorised valve. He did not know how to isolate the unit before working on it although he performed no electrical work. There is no evidence of Mr Glante being instructed not to perform electrical work or not to work in a way that put him in danger of coming into contact with energised points or cables, especially when working on air conditioning units.
78 Whether work on the air conditioning units could be properly described as "electrical work" or not, the fact is that the maintenance staff who were not qualified electricians worked inside the air conditioning units and removed certain parts: where this occurred there was a possibility that they could be exposed to energised contact points. The evidence shows there was no delineation made between work (such as the air conditioning work) that could put staff members into contact with live wires and electrical work that was only to be performed by Mr Burgess, by Staniforth or by any other specialist contractor.
79 In relation to this particular, the following matters are of significance:
(a) Mr Leisemann was in possession of a Voltfinger on the day of the accident and had previously been seen with it in his shirt pocket by maintenance staff. The purpose of the Voltfinger was to test for the presence of an electrical current;
(b) Mr Burgess possessed his own volt stick/Voltfinger for use in his job with the defendant;
(c) Mr Nelson stated that maintenance staff were to perform only "light electrical work", with major tasks to be performed by Staniforth or other contractors;
(d) Safety Committee records (which were seen by Mr Nelson and discussed with Mr Leisemann as required) noted that JL was "replacing more electrical points " and later noted that electrical points were being "replaced on ongoing basis". Mr Nelson assumed these entries to be a reference to ongoing work to be performed by contractors and/or the "tagging" of equipment - he did not know who was doing the work and there is no evidence of him enquiring about who was performing these tasks;
(d) Mr Leisemann's work diary contained an April 2004 entry concerning the removal of an electrical motor and having Stainforth take it away. A later entry records Staniforth's advice that the electrical motor was irreparable. The entry is capable of being understood as Mr Leisemann removing the electrical motor and handing it over to the contractor. In June 2004, an entry speaks of a discussion and the removal of an overhanging lamp. In August 2004, there is an entry referring to 3 phase power to Mac St . In October 2004, an entry speaks of wanting to fit a new thermostat.
80 While Mr Nelson received the Safety Committee minutes, he was unaware of the existence of the work diary. Both documents, however, represented means by which a check or review of Mr Leisemann's work could be conducted and provided a basis for ensuring that he was not engaging in electrical work. The defendant's duty to be diligent in relation to workplace safety, to take account of the foibles of employees and the possibility that they will not obey instructions leaves as a hollow and irrelevant consideration the defendant's submissions that it did not know what Mr Leisemann was doing. The evidence is that it did not know what any of the maintenance staff were doing and took little, if any, steps to be informed on this topic - the defendant was content to rely on assumptions about the work. As it stands, the evidence favourable to the prosecution's case raises a prima facie case that there has been a breach of the Act in relation to this particular.
81 The third particular alleges a failure to adequately inspect or ensure that an adequate inspection was undertaken of the electrical circuits that its employees were not exposed to the risk arising from live electrical circuits. This appears to be an allegation that requires the word "so" to be inserted after the words "electrical circuits". Mr Nelson's evidence was that he regarded the adjustment of the air conditioning units as a simple task of moving a knob on a wall mounted unit - a task that could be undertaken by a lay person and a guest and only became aware after the accident of the nature of the work to be performed on the units. There was, therefore, a failure to inspect the air conditioning system to establish what was involved in the task including the need for entering the units, changing the filters and adjusting the thermostat and whether removal of any of the items in the unit might expose the maintenance staff to risks, including risks of electrocution. There was no evidence of an audit of electrical circuitry regarding the air conditioning units and Mr Rayner stated that the circuits were not clearly identified. Limiting this third particular to electrical circuitry concerning the air conditioning unit, as the evidence stands, the defendant could be lawfully convicted in relation to this particular.
82 The fourth particular alleges a failure to ensure that the electrical supply to air conditioning units was isolated before any work was performed on them. The evidence shows that Mr Nelson was not aware of what was involved in adjusting the thermostat in these enclosed units. The nature of that work, as discussed above, left open the possibility that parts of the unit could be removed and there could be a risk of coming into contact with the energised contact points, especially where the securing screw on the cover of the valve had been removed and wire was used to secure the cover in a way that suggested that, from time to time, the cover was being removed, as observed by Mr Rayner. There was no instruction to isolate the units and indeed it was not known to the maintenance staff prior to the accident where the circuit breaker was located that would isolate the air conditioning units. Once this work was to be performed by the maintenance employees, the isolation of the units was to protect them from any risk of electrocution.
83 Mr Burgess said that he would isolate the air conditioning unit depending on the type of work to be performed, for example, if he was working on the electric controls or changing the V belt. He became aware after the accident that the steps he took to isolate the unit and the work he undertook, believing the unit to be isolated, were ineffective and unwittingly he was working "live". He said he had very little test equipment. Importantly, Mr Burgess stated that the motorised valve regulated the water flow and that impacted upon the temperature. The inference is available that, to adjust the temperature in each unit, might also involve working on the motorised unit: that work could require isolation of the power to the unit. Mr Burgess had not been instructed what electrical work to do or not to do. As earlier discussed, the other maintenance staff were in the same position other than being expected to perform "light" electrical work. Indeed, Mr Nelson said that some safety policies were simply known to employees and they knew what had to be done.