of defrauding ACC of a total of more than $10 million over the past four years. This includes clients claiming they were "injured" but who kept working while receiving ACC benefits and medical practitioners who billed ACC for more treatment than they actually provided. Another category of ACC fraudster includes widows who continued claiming payments after their (injured) partners have subsequently died. Sometimes these payments went on for nearly 30 years before the fraud came to light, with one woman having received nearly $150,000 after her husband had died. Staff fraud ACC staff have defrauded the corporation on a number of occasions. Jeffrey Chapman, former ACC chief executive from 1985 to 1992, was imprisoned for defrauding ACC and other government agencies; Gavin Robins, his successor from 1993 to 1997, was also charged with fraud but was acquitted. In 2011, a senior manager was convicted of dishonesty offences involving property leased to ACC by private business interests. In late 2012, Jonathan Wright, an ACC-contracted medical assessor, was convicted of dishonestly obtaining over $18,000 in falsified travel expenses from ACC. Treatment-injury claims A treatment injury is one caused in the course of treatment by a registered health professional, and are not a necessary part or ordinary consequence of the treatment. Until 2005, these were called "medical misadventure" claims. Bronwyn Pullar privacy breach ACC has had a number of breaches of privacy relating to claimants. The most significant occurred in 2011 after the release of details of 6700 claimants to an ACC claimant, Bronwyn Pullar. Pullar had been battling ACC since suffering a head injury in 2002—and had 45 separate complaints against the agency—only one of which was about the privacy breaches. In 2011 she and former National Party president Michelle Boag, had a meeting with two senior ACC managers to discuss her concerns. ACC referred the matter to the police claiming Pullar had threatened to go to the media about the privacy breaches if she didn't get what she wanted. The police listened to a tape recording of the meeting and decided there was no case to answer. In March 2012, ACC Minister Nick Smith resigned from Cabinet after it was revealed that he had written letters on behalf of Pullar, who was a personal friend of his, while he was ACC Minister. ACC chairman John Judge continued to insist his version of events was correct and as a result ACC Minister