[HalimahYakult]

Originally Posted by FNSFL

What is known colloquially as 白卡 or white card, is actually a temporary permit to remain in Singapore.

It is issued to foreigners who have been caught and have served sentence for various offences eg overstaying or engaging in illegal activities, but are not deported yet.

They are required to remain in Singapore to stand witness for the prosecution, usually against their erstwhile employers.

I'm familiar with that white card but never heard of legal house girls getting white card.