Saville Report due to be published

Lord Saville of Newdigate headed up the 12 year investigation-the longest and most expensive in British legal history.

Over 900 people gave testimony to the inquiry in Londonderry and London into the killings of 13 people by the Parachute Regiment on the afternoon of January 30, 1972.

Amongst the most contested state killings in Northern Ireland in the span of the conflict, the original inquiry into Bloody Sunday led by Lord Widgery mainly exonerated the soldiers involved and placed guilt upon those shot dead.

It is widely accepted that the shootings helped fill the ranks of the Provisional IRA and as a consequence reshaped the course of the Troubles.

In 1998, then Prime Minister, Tony Blair established a new inquiry to be led by former High Court judge, Mark Saville.

The inquiry finished taking evidence in 2004 and the report was originally due for publication the next year.

Unionists have heavily criticised the cost of the inquiry which has reached almost 195 million.

Prime Minister David Cameron will formally launch the report today, (June 15, 2010), at 3.30pm in the House of Commons.