Lord Saville has defended the time and money spent on producing his report into the events of Bloody Sunday.
Giving evidence to the Northern Ireland Affairs Committee on 13 October 2010 he said he was not aware of anything that could or should have been done better.
The inquiry was the longest running in British legal history and cost about £200m between 1998 and 2010.
It was heavily critical of the role of the British Army and found that soldiers fired the first shot during a civil rights demonstration in Londonderry in 1972 that led to the deaths of 13 soldiers.
Prime Minister David Cameron has said he is "deeply sorry" for what happened and described the findings of the Saville Report as "shocking".
Committee members are expected to question Lord Saville on the length of time and cost of the inquiry, and the adequacy of existing legislation on UK public inquiries.