KINGSTON, March 27: Leaving no stone unturned in probe of Pakistan cricket coach Bob Woolmer's murder, Jamaican police is now investigating if his last room-service dinner was laced with drugs to subdue him.

Deputy Commissioner of Police, Mark Shields, who is leading investigation, said man of Woolmer's stature could not have been manually strangulated unless he was impaired.

“He was 6ft 1 and a big man. Unless he was drugged or impaired it would perhaps have been difficult to restrain him. We are looking at whether his food was drugged,” he said.

“The meal was thrown away after he put tray outside his room, but we are conducting toxicology and tissue tests,” Shields said.

Police, who are treating CCTV cameras as 'critical' piece of evidence, said investigation process was taking a little longer as 'CCTV was in a particular format and we have to preserve original cassettes. I had to have them converted into a digital format so we can begin process of reviewing them methodically.'

“That does not happen in five minutes. We have got it now, and my officers are starting to go through it.” Cameras were at either end of corridor on the floor and near lifts.—Agencies