21 Philip Turner is an occupational hygiene consultant specialising in workplace hazards. He holds a Bachelors degree in Applied Chemistry and a Masters degree in Safety Science. He has been involved with the transport of dangerous goods since the early 1980's. Mr Turner knows Mr Tim Elley, the defendant's managing director, through their involvement with certain industry associations. Mr Elley periodically refers work to Mr Turner. In Mr Turner's opinion, the quantity of dangerous goods incorrectly segregated and shipped was relatively small. As suppliers to the surface finishing industry, the defendant shipped thousands of kilograms of acids and cyanides annually. Industry organisations can use thousands of litres of acid and cyanides in tanks in relatively close proximity. Despite the hazards, the risks are well controlled. Mr Turner was aware of two significant incidents (including one fatality) due to cyanide exposure over the last 30 years. The load was packed by a professional truck driver and shipped on a vehicle operated by a reputable transport company which, Mr Turner considered, contributed to the containers not breaking in the accident. Mr Turner said that although he would not have failed to segregate the dangerous goods as required, the regulation of chemicals involves many threshold values and the Australian Code for the Transport of Dangerous Goods by Road or Rail is complex and difficult to read and understand. While the Code clearly identifies silver cyanide and hydrofluoric acid as incompatible substances, Mr Turner did not consider the Code made the consequences of that designation clear. While he agreed with much of Mr Ritchie's evidence, Mr Turner concluded that Mr Ritchie had overstated the hazard of the load. He characterised Mr Ritchie's scenario of a person remaining in the enclosed trailer for 30 to 60 minutes as highly implausible. He did not agree with Mr Ritchie's characterisation of the capacity of the goods, if they mixed, to cause "large quantities" of hydrogen cyanide, but accepted the general thrust of Mr Ritchie's calculations and that one kilogram of silver cyanide was sufficient (if it mixed with the acid) to generate a toxic plume that could cause ill health to people nearby. Mr Turner's affidavit contained other material relating to the defendant's practices (including training). However, it was apparent from cross-examination that Mr Turner did not have personal knowledge of those matters. Mr Turner agreed that a corporation involved in shipping quantities of dangerous goods as a central part of their business, such as the defendant, should have focused its training on the tasks it was performing. Mr Turner also thought the Borders Express consignment note inhibited the identification of all dangerous goods on the load, as it only had one space for dangerous goods.