The Japanese officials used hooded informants and traitors ( translators ) to identify the Anti-Japanese elements. Those identified were taken away in lorries. It was said that they were taken away for interrogation. But after they were taken away, they were never seen again, not even after the war ended. Those who "failed" the questioning were taken to the beaches of Punggol and Changi to be shot.
I am not traitor; I am just translator. I need to eat and live too.