Calvin (apoligies for wrong spelling the first time). You harp on "prove bhajji didn't...". Let me ask you this - what is difference between a mistake and cheating? My take - mistakes do not show pattern/bias. Going by your logic, "prove Bucknor did not..."
As per Ponting's call on Ganguli - it was an agreement between captains that grounded catches will be decided by players. All commentrators decided it was doubtful (i thought it was grounded on 2 occassions - but thas besides the point), so why could not punter/Clarke say - "hey, I am not sure". You know why? because doubt means not out. Tell me one commentator who said - wow that was stright out. Indian media says it is not out and Ozzie media says it is doubtful. How come the only one person who is sure about it is punter?
This has been an Australian strategy for some time. Take promises from visiting captains, leave things out of the plate and then, when time comes - do a Brutus!