6 An agreed statement of facts was tendered. In so far as its needs to be quoted the statement was in the following terms:
5 At all material times, the Defendant:
(a) was the principal contractor of the site and had facilitated the construction of an overhead protective structure ( scaffold ) at the site;
(b) had engaged the services of 3D Scaffolding Pty Limited ( 3D Scaffolding ) to construct the heavy duty scaffold for the perimeter of the site;
(c) had engaged the services of Regment Pty Limited ( Regment ) to cut in situ timber scaffold planks to correct safety hazards in the scaffolding;
(d) employed Gregory Paul ( Mr Paul ) as Team Leader, Stonemason;
(e) employed Robert Kavanagh ( Mr Kavanagh ) as Scaffolding Manager at the site.
6 On 7 September 2000, the Defendant contracted with 3D Scaffolding to construct a scaffold to the perimeter of the library building at the site which was of a circular profile.
7 On 11 September 2000, 3D Scaffolding commenced construction of the scaffold. Construction of the scaffold was completed on 28 September 2000.
8 On 28 September 2000, 3D Scaffolding issued a handover certificate to the Defendant.
9 In early December 2000, Mr Kavanagh, identified that the existing timber planks on the scaffold, which were lapped across the gaps between adjacent modular bays, were a trip hazard. The reduced minimum vertical clearance between the scaffold decks of approximately 2 metres created the potential risk that workers wearing hardhats would strike their head onto overhead structures.
10 Mr Kavanagh notified this safety issue to Greg Shuetrumpf, Heritage Services Project Manager ( Mr Shuetrumpf ) of the Defendant. An assessment of the risks of erecting scaffolding on a circular shaped building was undertaken by Mr Kavanagh and Mr Schuetrumpf in approximately December 2000. That risk assessment was not documented. Mr Kavanagh suggested that the safety hazard be addressed by cutting timber infill planks in situ so that the ends of the planks would bear directly onto the scaffold transoms.
11 The Defendant contracted Regment to cut in situ the timber scaffold planks so that they sat directly onto the horizontal lip of the modular scaffold transoms on 3 January 2001. This work was commenced by Anthony Chalita ( Mr Chalita ) and Robert Farah ( Mr Robert Farah ), employees of Regment. The director of Regment, Mr Joseph Farah, visited the site every 2 to 3 days, spending approximately 3 or 4 hours on each visit.
12 Neither Mr Chalita, Mr Robert Farah nor Mr Joseph Farah held relevant certificates of competency in scaffolding.
13 Mr Chalita and Mr Robert Farah were not under the direct supervision of a licensed scaffolder or listed on a logbook overseen by a competent person.
14 On 19 January 2001, Regment completed their work at the site.
15 The appropriate handover certificate for the modifications to the scaffolding carried out by Regment was not obtained by the Defendant before persons were allowed to access the scaffold in order to undertake work at the site.
16 On 27 February 2001, Mr Paul, an employee of the Defendant, and Mr Glen Fuller ( Mr Fuller ), a contractor, were on the radius of the circular scaffold moving in an easterly direction. Mr Fuller was pushing a wheelbarrow. Mr Paul passed Mr Fuller and walked over the third timber infill platform from the stair tower access.
17 As Mr Paul extended his left leg onto the adjacent steel modular scaffold deck, the timber infill platform subsided. Mr Paul fell about 1 metre towards the next scaffolding deck. As he fell Mr Paul grabbed hold of a scaffold tube restraining his fall. The distance between the deck Mr Paul fell from and the deck below was approximately 2.3 metres.
18 As a result of this incident, Mr Paul sustained a fracture and anterior dislocation of the peroneal tendon to his left ankle.
19 After the incident, Mr Paul was unable to return to work until 28 April 2001. For the two weeks following 28 April 2001, Mr Paul was only able to work for 6 hours a day.
20 On 11 May 2001, the Prosecutor attended the site and observed the following:
20.1 A modular perimeter scaffold with chain wire mesh and shadecloth to the outer face of the scaffold. The scaffold was approximately 15 metres in height and circular in profile;
20.2 A scaffold deck to the perimeter of level 1 of the library building, approximately 5 metres above the immediate ground level below;
20.3 Travelling in an easterly direction approximately 8 to 9 metres along the circumference of the scaffold was a section of grey plywood approximately 2.3 metres in length. The plywood was supported at either end by modular bays of scaffolding. To the external edge of the plywood is a timber toe board approximately 240mm in height and 20mm thick;
20.4 Above the toe board were two horizontal steel scaffold tubes, approximately 45mm in diameter. One appeared to be a mid rail tube approximately 500mm above the plywood platform. The second tube appeared to be a handrail and was approximately 1 metre above the plywood platform. Both the handrail and the mid rail were attached at either end to the vertical scaffold standards with 90 degree couplings;
20.5 To either end of the plywood was a five board 1.2 metres wide by 2.4 metres long modular scaffold bay. This configuration of a section of plywood, timber infill bay between two modular steel bays was consistent around the level;
20.6 To the internal side of the scaffold was a horizontal steel tube, approximately 45mm in diameter attached to the scaffold standards, 1 metre above the plywood deck. Either end of the scaffold tube was secured to the standards with 90-degree couplings.
20.7 Protruding to the top of the plywood deck and to the internal side of the scaffold was a green handrail attached to an existing sandstone veranda approximately 1.1 metres below the scaffold platform.
20.8 The grey plywood sheeting forming the timber scaffold platform was approximately 17mm in thickness and is tapered at either end. The plywood is screw fixed to the timber scaffold planks below.
20.9 Approximately 2.3 metres overhead of the plywood work platform was a scaffold deck consisting of five timber planks with a two-board hop up. Each of the seven timber planks were approximately 250mm wide and 50mm in thickness. The ends of each plank were secured in a steel transom or hop up bracket of similar profile. There was plywood blocking to the underside of each end;
20.10 The timber appeared to be Oregon. One timber plank was marked D-Fir-F7. There was some galvanised steel strapping exposed to the base of the timber planks. The steel transoms supporting the timber planks splayed outward toward the outside edge of the scaffold. The internal most plank was approximately 1.35 metres in length to its point of support and the transom. The external most plank was approximately 1.8 metres in length to its point of support at the transom;
20.11 There was another work platform approximately 2.4 metres below;
20.12 To the underside of the grey plywood platform were 4 timber planks, approximately 250mm in width and 50 mm in thickness with one timber, also Oregon in appearance approximately 100mm to the outer edge of the platform; and
20.13 The internal most plank when measured along its outside edge was 1.38 metres long between its point of support at the transoms. The external most plank was approximately 1.83 metres in length when measured along its outside edge to its point of support at a transom.
21 On 21 March 2001 an employee of the Defendant, Mr Peter McRobert, conducted an investigation into the incident and found that:
21.1 the section of the scaffold platform which collapsed was a purpose built, infill section made from timber planking to fit between the scaffold transoms. The section consisted of 5 planks, angle cut to conform to the splayed profile of the supporting scaffold transoms;
21.2 the angle cuts to 2 of the planks were a little more acute than necessary as well as slightly short to render a firm fit. This was compounded by the angle of the fifth plank being cut a little too square allowing this plank to slip past the 90 degree star brackets on the standard;
21.3 the bank of 5 planks moved to the outer edge and allowed the slightly shorter second and third planks to creep off the transom and fall; and as all 5 planks were strapped and nailed together, the whole section fell through the opening to the level below
22 The Defendant cooperated with the Prosecutor throughout the investigation.