12 In January 2005, Mr Parker became aware of the operation of a pre-shredder in use at a facility in Birmingham. He visited that facility for the specific purpose of determining whether it was suitable for installation at Sell and Parker's Blacktown premises. Prior to that, Mr Parker had not been aware of any pre-shredder facility that was of sufficient strength and power to operate effectively at its Blacktown premises. He attempted to negotiate with the manufacturer of the Birmingham pre-shredder to design and manufacture a version for Sell and Parker, but these negotiations were unsuccessful. When he returned to Australia, Mr Parker spoke to the original designer of the Birmingham pre-shredder to see whether a redesign was possible. On 26 January 2005, he received confirmation that the original designer could design, construct and deliver a pre-shredder with the required power level. He went to Taiwan (the location of the designer's offices) to continue negotiations, and placed an order for the design, construction and delivery of the pre-shredder on 23 February 2005. Contracts were entered into on 17 March 2005. Sell and Parker paid an initial deposit of $70,818 on 1 April 2005. It paid a second instalment of $139,710 on 11 May 2005 after receiving the final design drawings. Mr Parker consistently emphasised to the designer that it was essential that Sell and Parker take delivery of the pre-shredder as soon as possible. However, the pre-shredder did not arrive at its Blacktown premises until 20 January 2006, and was not commissioned until 7 March 2006. The total cost of installation of the pre-shredder was $2.6 million. Mr Parker's sole purpose in installing the pre-shredder was to minimise the risk of future explosions.