Hair is at the centre of the current controversy

It has written to the International Cricket Council demanding an inquiry before Inzamam-ul-Haq's disciplinary hearing at the end of September.

The ICC confirmed it had received a letter from the PCB.

But a spokesman said it did not constitute a charge under the umpires' code of conduct in the regulations.

Hair and umpire Billy Doctrove penalised Pakistan five runs for ball-tampering on the fourth day of The Oval Test.

The PCB feels it was Darrell Hair who brought the game into disrepute at The Oval and not Pakistan PCB spokesman

This led to Pakistan refusing to come out to play after the tea interval in protest at the umpires' decision and the match was awarded to England.

Inzamam, as captain and representative of the Pakistan team, was charged with ball-tampering and bringing the game into disrepute.

"The PCB feels it was Darrell Hair who brought the game into disrepute at The Oval and not Pakistan," a PCB spokesman said.

He added the PCB had also reiterated that Australian Hair would not be accepted as an official in future matches involving Pakistan.

PCB chairman Shaharyar Khan added: "We are not pressing any charges, we are simply requesting that Mr Hair should be investigated."

Skipper Inzamam insisted that he was prepared to play on after making his original protest at The Oval: "That is why I am doing these things, because I know we are not guilty and that is why we take this stance," he said.

"Darrell is in big trouble, I don't know why he is doing these things. I'm quite happy for us to play the game after half an hour - and then the next day - because we had launched our protest. I don't know why he was not interested in playing.

"Now it is a big issue. I'm not worried about me and Darrell Hair - I'm thinking about the cricketers. It's not good for their cricket and a lot of people who have seen us think it is not a good thing."

Inzamam's hearing is set to take place the last week in September.

The PCB is also wanting clarification on whether to name Inzamam in the squad for the Champions Trophy as the ICC wants the final 14-man squads confirmed by 7 September.

"This is a very pertinent issue for us. We want to know from the ICC what happens if we pick him in our final Champions Trophy squad," director of cricket operations Saleem Altaf said.