Pol Gen Surachate Hakparn, the national deputy police chief, said today (Wednesday) that he does not know whether the 8-month-old missing baby from Nakhon Pathom is alive or not, but that he is quite sure that the parents know what happened.

He said police will try all means available to them to extract the truth from the couple, who were escorted today from their home in Bang Luang district in Nakhon Pathom Province to Bang Luang police station for further questioning.

Police said that they will conduct polygraph tests and the couple said that they are ready to cooperate to prove their innocence.

Pol Gen Surachate said investigators have several theories as to the motives behind the child’s disappearance, including assault, a fight between the couple or that the husband may not be the child’s father.

He also said that he has reprimanded the local police for failing to respond immediately when they were alerted to the baby’s disappearance from home on February 5th.

Searches for the infant at the family’s home and in surrounding areas have failed to turn up any clues. Forensics officers have not found any traces of foul play either.