Four police officers accused of framing a suspect for theft have been ordered to do desk work while they are investigated. The four, from Kowloon West Police Tactical Unit, were alleged to have framed the 57-year-old man two days ago, said Yau Tsim District Commander Chief Superintendent Chris Glover. He said the Complaints Against Police Office was monitoring the investigation. It is understood the allegation is against three constables, but a sergeant suspected to have been involved is also under investigation. Chief Superintendent John Yuen Ying-lam, Deputy Regional Commander of Kowloon West, said: 'The four officers have been put on in-house work.' In the early hours of Thursday, the suspect was intercepted and allegedly asked by the officers to snatch a woman's bag. The man, with a record of drug addiction, was said to have been promised $500 and a small quantity of heroin for committing the theft. The officers took the man to Shanghai and Saigon streets in Yau Ma Tei where a woman was targeted at about 4.45 am. But Yau Tsim detectives became suspicious when the suspect was taken back to the police station after his 'arrest'. Mr Yuen rejected suggestions the four tactical unit officers were under pressure to boost their detection rate. Three other Kowloon West tactical unit officers were found guilty on Wednesday last week of framing a long-term criminal for shoplifting on February 9. Asked whether the two cases showed an unhealthy culture in the Kowloon West tactical unit, Mr Yuen said: 'Every individual has the right to make decisions. 'It is difficult to predict what they will do. But we take any allegations seriously.'