"11. The scheme was originally devised by Low and Ting. Sayachack was later brought in by Low. Hui was brought in by Ting and Yong then brought in by Hui. Hui and Yong essentially assisted in negotiating the cheques via pick-ups from post office addresses and deposits and withdrawals in various bank accounts provided by them for which they received a percentage cut for each cheque negotiated. It has been agreed that the conspiracy was a loose scheme involving a system which became largely self-supporting and did not involve a great deal of organisation once it was up and running. 12. Each of the participants went in and out at various times. Only Mr Low was there from beginning to end. Ms Sayachack began employment with the ATO on 3 April 1987 in the Returns processing section at the Moonee Ponds ATO office. Ting joined the section in August 1989. Low began work in the same section on 19 February 1990. All three began as Level 1 clerks, primarily involved in data entry duties, but working in different teams. Sayachack and Low became friends after working together on a particular ATO project. Around September 1993 Ting agreed with Low to generate fraudulent cheques. The scheme began with Low generating five fraudulent cheques via the ATO computer system using tax file numbers held by genuine taxpayers whose names were provided by Ting. Three of the cheques were made payable to Ting's sister, brother-in-law and a friend of his, Cheri Lui. It is not known what amount of the cheque ultimately ended up in the hands of Low and Ting. 13. Ting and Low were seconded to the Department of Immigration and Ethnic Affairs, as it then was, in February 1994 where they did not have the ATO computer access they required for the scheme. At that time Ms Sayachack told Mr Low she was experiencing money difficulties and was brought by him into the scheme whilst Low and Ting were on secondment. She operated the ATO system to generate fraudulent assessments and cheques, retaining as her share between 20 and 45 per cent of the cheques proceeds. She also provided postal addresses to which many of the fraudulent refund cheques were sent. Ting continued to alter returns supported by false records, generate refund cheques and provide names and details to be used in a conspiracy including friends and family members. He also provided postal addresses for the selection of cheques and bank accounts via which they could be negotiated. He voluntarily withdrew from the scheme in 1999. 14. Around August 1995 Ting approached Hui, a friend of his for some years, offering to get him a larger tax return than he was lawfully entitled to via manipulation of the ATO computer system on the basis that Hui pay him 50 per cent of the refund obtained. Hui agreed and a falsely generated refund of about $8000 was paid out. In March 1996 Ting told Hui about the scheme operated by himself, Sayachack and Low, and asked if Hui could provide bank accounts which were needed to negotiate the bank cheques generated. Hui then provided the bank account of a friend Ms Hui Fong Yup who was about to leave Australia permanently, obtaining her bankcard and controlling the account after she left. He also gave Ting the name of his friend Cindy Yong, as a person who would also have access to accounts through which the fraudulent refund cheques could be negotiated. He further provided the name of Yup's boyfriend who had also left Australia for use in a false assessment. The Yup account was used extensively by Hui for the negotiation of fraudulent refund cheques, he retaining a percentage of the cheque and on passing the balance. 15. Cindy Yong was recruited by Hui in August 1995. She provided Hui with the names and details of friends and family who had previously lived in Australia, but who had since departed permanently leaving their bank accounts unclosed and ATM cards in her possession. Those persons included her mother and brother. She also leased a post office box to which cheques she was to deposit were sent. Yong would withdraw money from these accounts and on pay them to the co-conspirators. Cheques generated by Low, Ching and Sayachack were sent to the post office box, collected by Yong, deposited in one of the bank accounts and withdrawals made to be passed on to the co-conspirators. For this Yong received a percentage cut of each cheque."