Thailand's national police chief said investigators were in possession of crucial DNA evidence in the murder trial of two Burmese migrants accused of killing a pair of British tourists.

Media reports Thursday said the evidence had been lost or destroyed, but national police chief Gen. Somyot Poompanmoung denied that Friday. "It is not lost," he said.

The comments came on the third day of the trial in a case marked by questions of police and judicial competency and claims that the accused were tortured into confessing.

After two days of delays, the court was expected to rule Friday on a defense request to re-examine key DNA evidence. A policeman who testified a day earlier was quoted in some news reports as saying some the evidence might be lost.