Pakistan cricket board officials suspect the death of coach Bob Woolmer was due to natural causes and that the Jamaican police acted hastily by declaring it a murder.

A senior official of the board, who asked not to be identified, said they had received information that there could have been mistakes in the first autopsy on Woolmer's body.

"We believe the autopsy by the pathologist may have had error counts and they (police) are now considering having a second autopsy to confirm the cause of death," the official said.

"The feedback we have got is there are some contradictions in the version of events after Woolmer's body was found unconscious. But we will get a clearer picture after our manager briefs the board on what took place there," he said.

Briton Mark Shields, the deputy police commissioner heading the investigations into the 58-year-old's death, said yesterday he believed that it could take months to piece together a complicated murder case with hundreds of potential witnesses.