Pakistan High Commissioner to Britain Wajid Shamsul Hasan on Sunday said if any national team members is found guilty of spot fixing they should be handed nothing less than life ban.
"If the News of the World evidence is correct, then I would banish them from cricket," Hasan told BBC Radio 5 live.
Captain Salman Butt and pacer duo of Mohammad Asif and Mohammad Aamir's roles in the Lord's Test against England are being probed by police and the International Cricket Council.
However, the High Commissioner again insisted that the trio are "innocent until proven guilty".
"That was my stance from day one and I still maintain it. We questioned them and all my colleagues that talked to them said, yes, apparently they are innocent. But we're not police investigators - it's up to the police to find out if they're guilty," he said.
In another development, the BBC reported wicketkeeper Kamran Akmal has been contacted in writing by the ICC.
"Akmal has been contacted in writing by the ICC, though there is no suggestion that he is the fourth player (under investigation) and it is not in relation to incidents in the recent fourth Test at Lord's," the report said.
During that Lord's match, Asif and Aamir allegedly bowled three no-balls at pre-determined times to facilitate betting.