Published Sunday, 13 July 2014
Tony Blair has not yet appeared at the committee. (© Getty)
The move may be considered by MPs on the Northern Ireland Affairs Committee, according to the Sunday Telegraph.
Mr Blair's government made the secret deal with Sinn Féin to assure republican fugitives that they were not wanted by the police in the UK. Around 200 letters were sent out.
The episode is now being investigated following the collapse of the case against 62-year-old Co Donegal man John Downey, who denies charges linked to the 1982 IRA Hyde Park bombing.
He had received a letter wrongly assuring him he was not wanted when, in fact, the Metropolitan Police were looking for him.
Tony Blair has not yet given evidence to the Westminster inquiry in person but his part in orchestrating the deal over the letters has come under increasing scrutiny.
Meanwhile the result of another inquiry into the 'on-the-run' letters is expected to be published by judge Lady Justice Heather Hallett later this week.
© UTV News