The Coroner's Court has urged the Immigration Department to strengthen patrols at airport detention quarters after ruling that a South Korean detainee had committed suicide by hanging.
A five-member jury also proposed that log books be placed within sight of video cameras already installed at the quarters to ensure that patrolling officers carried out their regulatory hourly inspections.
The suggestion came after the jury ruled unanimously that Chung Oh-sang, 60, committed suicide on May 6 last year with an electrical cable inside the washroom of the detention quarters.
The court had heard that immigration assistant Yung Fu-chiu discovered Chung's body hanging after seeing water leaking from a locked shower cubicle during his patrol at 5.30am.
When Mr Yung stood on a plastic stool to look into the cubicle he saw Chung facing the wall with an electrical cable around his neck. The cable was attached to the shower head.
The video surveillance tape showed Chung walking from the room in which he was held towards the washroom at 5am.
The records showed his room was last patrolled at 3.15am.