SINGAPORE - Citing recent murders allegedly involving foreign domestic workers (FDWs) with psychological problems, Non-Constituency MP Lina Chiam on Friday asked for mandatory psychological health tests for new FDWs.

Senior Parliamentary Secretary for Manpower Hawazi Daipi referred to the existing mandatory six-monthly health screenings and said it was "impractical to mandate a wide-ranging set of medical tests for all employers".

He said: "Individual employers with specific concerns should send their FDW for other suitable medical tests."

Mrs Chiam later said that she and her husband, former Potong Pasir MP Chiam See Tong, had been given similar replies each time they advocated this in Parliament.

"Please think of the employers for a change," she said.

Mr Hawazi replied: "Mrs Chiam said that we have been giving her the same answer. I remember her asking the same question.

"The issue remains the same, that it is not very easy to detect a potential foreign domestic worker with psychological problems. We may be able to detect the worst cases."

He again referred to the compulsory health screening for FDWs, through which the doctor may be able to detect any psychological problem.

"On the cases that Mrs Chiam has referred to, especially the two recent cases, they are still under investigation by the police. I don't think we should comment on that," he said.