A veteran bomb disposal expert was taken to hospital yesterday after he collapsed in his office at the Wan Chai police headquarters. Colleagues said Dominic Brittain, 45, head of the police bomb disposal unit, suddenly collapsed, injuring his head in his fifth-floor office in Arsenal Street at 9.30am. He was taken to Ruttonjee Hospital for treatment before being released. One of his colleagues said the police's top authority on explosives had been standing in his office talking to an officer when he lost his balance and fell. Police did not disclose what might have caused the collapse. 'He suffered minor head injuries. He is fine,' the officer said. The former naval officer was an internationally certified bomb-disposal officer before coming to Hong Kong. He joined the police force as an inspector in 1984, and heads the Explosive Ordnance Disposal Bureau. He joined the bomb disposal unit in 1990. As a child, he saw a bomb-disposal officer take charge of an IRA incident and was so impressed that he decided to become a bomb disposal professional. Mr Brittain is also the chairman of Adventure-Ship, an organisation that helps disabled and underprivileged children learn how to sail.