1 In an earlier judgment in this matter (Workcover Authority of NSW v Howard & Sons Fireworks Spectaculars Pty Limited [2000] NSWIRComm 211), the Court found the defendant, Howard & Sons Fireworks Spectaculars Pty Limited, guilty of an offence under s 16(1) of the Occupational Health and Safety Act 1983. The charge against the defendant was that "it did fail to ensure that persons not in its employment were not exposed to risks to their health and safety arising from the conduct of the defendant's undertaking, while they were in the defendant's place of work". The particulars of the charge were as follows:
1. The defendant was at all material times was (sic) incorporated in New South Wales having its registered address at 4th Floor, 460 Church Street, North Parramatta in the State of New South Wales.
2. The defendant was, at all material times, an employer engaged in the business of setting up and carrying out fireworks' displays.
3. On 18th February, 1997, the defendant entered into a contract with the Newcastle Agricultural, Horticultural and Industrial Association Inc. to provide a fireworks' display on 27th and 28th February and 1st March, 1997 at the Newcastle Showground which is located at Broadmeadow in the State of New South Wales.
4. On 28 February, 1997, at approximately 10.30 p.m., Judith Westphal, a person not in the employ of the defendant, was standing between the general grandstand and the members' grandstand of the Newcastle Showground, approximately one to three metres behind the show ring fence to view a fireworks display put on by the defendant. There was a short delay in the high level fireworks' display towards the end of the entire fireworks' exhibition, approximately the same time as the ground level fireworks' display was initiated. At this time, an undetonated fireworks' shell struck Judith Westphal on the lefthand side of her face, causing her injury.
5. The fireworks' shell that struck Judith Westphal was a Thunder Bird brand TB84-308 fireworks' shell, measuring 100 mm which the defendant had purchased from Hop Kee Pyrotechnics, a company engaged in the manufacture of fireworks located in China.
6. The defendant was aware that on previous occasions, fireworks' shells had not burst.
7. The system of work used by the defendant for providing the fireworks' display on 28 February, 1997 commenced with a site inspection to determine safety distances between the proposed firing point and spectators, which in turn determined what fireworks would be used for the exhibition. The fireworks were then prepared at either the firing point or on trailers, depending upon the location of the proposed firing point and the pre-fireworks' display activities around the proposed firing point.
8. The safety distances used by the defendant to determine maximum shell size for a display are from the WorkCover Authority of New South Wales Dangerous Goods Publication DG108 "Fireworks Displays" and the Draft Australian Standards DR96479 "Explosives Part 4: Pyrotechnics - Outdoor Display". The defendant used the aforementioned documents to set up a fireworks' display so that a fireworks' shell which fails to burst does not result in injury to spectators even though these were distances formulated for correctly functioning fireworks, not for fireworks' shells which fail to burst.
9. The defendant did not use any instrumentation to verify the angle which a fireworks shell is launched from a mortar. As the angle that the mortars are fixed to the trailer and the angle the trailer are set to are estimated. (sic) Without verification of the firing angle and hence potential trajectory of the fireworks' shell, safety distances to spectators from fireworks' shells which fail to burst cannot be determined.
10. The defendant failed to ensure that persons not in its employment were not exposed to risks to their health and safety arising from the conduct of the defendant's undertaking, while they are in the defendant's place of work in that the defendant:
(i) Failed to apply distances between the firing point and spectators which minimised the risk of spectators being injured by malfunctioning fireworks;
(ii) Failed to have an adequate system of work for determining the firing angle and hence potential trajectory of the fireworks' shell;
(iii) Failed to determine the distance that a fireworks' shell, which fails to burst, will travel for a given lift charge and set mortar angle, with the knowledge that fireworks' shells may misfire.