Former Pakistan captain Salman Butt attracts attention at Allama Iqbal International Airport in Doha, Qatar, on Sunday. ((Sameed Qureshi/Getty Images))

Pakistan's disgraced former captain Salman Butt hopes a possible amendment to the International Cricket Council's code of conduct could see a reduction is his five-year ban from the sport.

"The judge has said there is a need to amend the law, which is a good thing," Butt told reporters on his return from Doha on Sunday.

Butt, 26, and fast bowlers Mohammad Asif, 28, and Mohammad Amir, 18, were found guilty of corruption at an International Cricket Council's tribunal in Doha after allegations they bowled no-balls at prearranged times during the fourth test against England in August.

Butt was given a 10-year ban with five years suspended, Asif a seven-year ban with two suspended, while Amir was banned for five years.

The ICC tribunal's head Michael Beloff has recommended changes to the ICC code of conduct "with a view to providing flexibility in relation to minimum sentences in exceptional circumstances."

"We are disappointed with the decision," Butt said. "We don't agree with it."

The three players have 21 days to appeal to the Court of Arbitration for Sport in Switzerland.

"As soon as [the ICC code of conduct] is amended, [my suspension] could be reduced," Butt said. "And we can go to court of arbitration, so there is still hope."

Amir's lawyer has already said the bowler will appeal against the suspension.

Amir was rated as Pakistan's next best left-arm pace bowler after legendary Wasim Akram as he took 51 wickets in just 14 tests in 13 months of international cricket before being suspended.

Shaharyar Khan, former chairman of the Pakistan Cricket Board, said the bans were too light, calling the suspensions a "concessional decision" from the ICC.

"It's a very shameful thing for Pakistan cricket that three of our players are found guilty," Khan told The AP. "I thought at least two [Butt and Asif] might get life bans and the third one [Amir] would get a lesser punishment."

Britain's Crown Prosecution Service said Friday the three players and their agent Mazhar Majeed will face criminal charges in that country, summoning them on charges of conspiracy to obtain and accept corrupt payments and conspiracy to cheat.

Majeed is due to appear for an initial hearing at London's City of Westminster Magistrates' Court on March 17.

Khan said the lawyers representing the three players should now sit together and prepare for next month's case.

"I believe they have to make a joint strategy as it's a very serious case," Khan said.