Public discussion has been swirling around the identity of the mystery woman connected to the probe since Wednesday, when a New Paper report said a woman IT executive linked to both Mr Lim and Mr Ng was involved in the case.
It is believed that both men admitted during questioning that they had improper relationships with a woman.
The Straits Times could not contact the woman directly for comments on Thursday but she was described by friends and contacts as tall, slim, long-haired and vivacious.