ICC Anti-corruption Unit Chief Investigator Jeff Rees has been summoned to join the probe into Pakistan cricket coach Bob Woolmer's murder following fears that the gambling underworld may have played a role in it.
The ICC has also contacted Anti-Corruption Unit Commissioner and Former London Police Boss Paul Condon, who is on stand-by to be flown in, a report in Australian media said on Saturday.
The top investigators will reach Jamaica to help with the investigation into the "manual strangulation" of Woolmer in his room at the Pegasus team hotel in Kingston last weekend.
There are claims that Woolmer was killed to contain information about match-fixing.
Former South African batting great Barry Richards has said that Woolmer might have been ready to blow the whistle on match-fixing.
"There is a strong feeling around that Bob was going to expose something," Richards said.
"People are asking that question and I must admit it is one I am asking myself. Why else would this happen? It may have been a fight gone wrong."
Pakistan fast bowler Sarfraz Nawaz suggested that it could be match-fixing related, and I know he is a loose cannon, but there may be something to it.
"There is a dark side to cricket. The game got on top of it for a while but it has never really been stamped out. There is no doubt it is still there," he added.