One of Donald Tsang Yam-kuen's campaign billboards has outraged a police staff association which is demanding it be removed, claiming it implies the police force is supporting his election bid. The massive poster in English and Chinese outside the Police Officers Club on the waterfront in Causeway Bay was erected early this month, bearing the campaign slogan 'I'll get the job done'. David Williams, chairman of the Overseas Inspectors Association, insisted that the billboard put the police force in a 'difficult' position and could be damaging to its reputation. Mr Williams said police had 'no say' because the building was owned by the Government Property Agency. 'The police should be totally apolitical. The property belongs to the government and basically whatever Donald Tsang wants to do with any government property, he can,' Mr Williams said, adding that he had lodged a complaint with the police staff relations office. Mr Williams has long fought for a pay increase for the police and said it 'adds insult to injury that the police force be seen to be supporting the man who has cut the pay for officers for the past 10 years'. Not all police oppose the positioning of the poster. Tony Liu Kit-ming of the Police Inspectors Association said the matter had not been discussed by his association, but he felt the poster could remain as long as other political figures could use the space in future campaigns. 'If we allow Donald Tsang to do it this time, it would be fair to all parties concerned if other political groups can do so in the future.' The Tsang election camp insisted that it had not been given preferential treatment by the government and that the space had been rented from an advertising agency outsourced by the Government Property Agency to sell space at that site. A member of Mr Tsang's campaign team said: 'It has nothing to do with the police office. It's a private business arrangement. We just booked a billboard through the private advertising agency.' A police spokesman said they did not think the advertisement would lead to any public confusion over the independence of the police. The Government Property Agency said last night that it had sought views from the Registration and Electoral Office and the police before approving the advertisement. Neither objected to the display.