KARACHI (AFP) - Former Pakistan captain Salman Butt has filed a comprehensive and hard-hitting response to allegations of spot-fixing ahead of an International Cricket Council (ICC) tribunal, his lawyer said Tuesday. The 26-year-old was provisionally suspended by the ICC along with fast bowlers Asif and Aamer following claims of spot-fixing during the Test against England at Lords in August. Butts lawyer Shahid Saeed also hit out at ICC chief executive Haroon Lorgat for violating a confidentiality agreement. Butt on December 13 has filed a detailed, comprehensive and hard-hitting 40-page response to each and every allegation brought by the ICC with regard to spot-fixing levelled against him, Saeed said in a statement. No details of the reply would be made public, the statement said, because of the confidentiality agreement which it said Lorgat had breached. The ICC itself is violating the agreement, as evident from the recent comments of Lorgat, said the statement, referring to remarks the chief executive made to the BBC saying he would be disappointed if the tribunal finds Pakistani players accused of spot-fixing not guilty. Butt, Asif and Aamer are due to appear before an ICC anti-corruption tribunal in Doha, Qatar from January 6 to 11 and face severe punishment if found guilty, including lengthy bans. Saeed has replaced lawyer Khalid Ranjha, who represented Butt in his failed appeal against suspension in October, while another lawyer Aftab Gul returned to assist Saeed after deciding to quit last month. Butt on Monday reiterated his innocence in the case, saying thousands of pounds discovered in his London hotel room after a 'sting operation conducted by Britains News of the World tabloid came from daily tour allowances, bat sponsorship and opening an ice-cream parlour. Scotland Yard raided Pakistans team hotel and seized money after reports in the News of the World claiming several visiting players took money from a bookmaker to obey orders during the Lords Test. Earlier, Salman Butt has denied allegations he was involved in a spot-fixing scam in England, saying I have not done anything such as this in my entire life or cricketing career. And he insisted there was no way as a novice skipper he could have improperly influenced any of his players. Butt and pacemen Mohammad Asif and Mohammed Aamer were provisionally suspended by the International Cricket Council (ICC) for breaking their code of conduct following allegations theyd conspired in the bowling of deliberate no-balls during the fourth Test against England at Lords in August. The trio denied the allegations against them, face a disciplinary hearing in Doha next month that is set to determine their future in cricket. The ICC took action after the players were 'exposed as part of an undercover probe by Britains News of the World (NoW) tabloid newspaper. Butt in his first major interview since the scandal broke, broadcast on British televisions 'Special Report on Sky Sport News here on Monday, said: I would like to say obviously I have not done anything such as this in all my life or my cricketing career. But apart from this we as players have a code to follow from the ICC which restricts us to talk about this event before the hearing takes place so I am so sorry but I cannot talk about the case at the moment, added Butt, interviewed at his home in Lahore. The opening batsman was thrust into the Test captaincy after Shahid Afridi quit as skipper following the teams 150-run thrashing by Australia at Lords. It was on the teams return to Lords a month later for the fourth and final Test against England where the NoW claimed Butt had instructed teenage left-arm quick sensation Aamer to bowl a no-ball deliberately. The Now said the delivery was a test set by players agent Mazher Majeed to prove he could, as he claimed, act as the middle man between members of the Pakistan team and illegal sub-continental bookmakers. I became captain as a result of an accident where the previous captain suddenly decided he couldnt play Test cricket anymore, so to have this kind of influence inside three or four games I think any kind of captain would like that, said Butt. These kinds of people (Aamer and Asif) do not let others decide their roles. As for the Now producing video evidence of Majeed correctly predicting when Aamers huge no-ball would indeed be bowled, Butt said: This relates to the case and I again remind you about the code. Hopefully, once things settle down, I can tell what I have in my mind right now. There were reports in the British media that when police raided Butts London hotel room they found marked notes used in the betting scandal.