An investigation is under way into the suicide of a veteran officer who shot himself with his service revolver on the roof of Stanley police station yesterday. The senior constable, aged 50, was found on one of the office blocks at the station in Stanley Village Road at about 3.30pm. He had a gunshot wound to the head and was certified dead when ambulancemen arrived. Aberdeen divisional commander Superintendent Chau Chor-kei said the victim was found in his uniform, leaning against a wall outside a changing room. 'One shot had been fired into his right temple and his service revolver was still in his hand. No one from the police station heard a gunshot. Initial investigations showed there were no suspicious circumstances,' he said. 'No suicide note was found. We are still investigating why he committed suicide. His colleagues told us that he had not been acting strangely in any way in recent days.' Mr Chau described the victim as a 'good officer'. He said the constable had not been under any form of investigation. The constable, attached to the patrol sub-unit of the station, had been in the force for more than 25 years and had worked on contract after retiring in 1998. He is survived by his wife, son and daughter. The case was classified as suicide and is being investigated by Western district crime squad. The constable's death comes after Sergeant Ho Hoi-kwan, 48, was found dead with a gunshot wound to the chest in a car park in Tso Wo Hang Village, Sai Kung, on December 15. He had been missing for three days. Friends said he was fond of gambling and was heavily in debt. He had also been working on contract after retiring. On September 5 last year, Constable Lam Yau-kwok, 45, shot himself dead with his service revolver in a children's playground in Pokfulam Road on the second day of his new posting. Ho and Lam were among six officers who committed suicide last year. The same number killed themselves in 1999. Sergeant Lau Kam-wah, chairman of the Junior Officers' Association, said there were sufficient channels for officers to seek help and counselling through the police force, and the number of psychologists available to talk to officers had recently been increased.