The Minister for Justice Michael McDowell has said the Government will set up a sworn inquiry following Judge Cory's recommendation for a public inquiry into allegations of garda collusion in the IRA murders of two senior RUC officers in the 1980s.

Mr McDowell called on members of the Republican movement to co-operate with the inquiry.

Judge Peter Cory made his findings in one of two reports published by the Irish Government this morning.

The British government has yet to make public Judge Cory's findings in four other inquiries he undertook into claims that the security forces in the North colluded in or ignored Loyalist killings.

His report into the March 1989 killings of Chief Superintendent Harry Breen and Superintendent Bob Buchanan found evidence that, if it were to be accepted, could be found to constitute collusion involving the gardaí.

The two RUC officers were returning from an informal meeting with gardaí in Dundalk that had been arranged by telephone when they were ambushed.

The judge found that the IRA did not necessarily need any help from a garda informant to carry out the ambush. However, the timing of the operation was so precise that it might lead to the conclusion that the IRA had been tipped off.

Since the killings, three intelligence reports and a statement from a British Army agent known as Kevin Fulton spoke of a garda source being responsible for passing on information about the movements of the two RUC men.

In the other report published today, Judge Cory finds no evidence of garda collusion in the IRA murders of Lord Justice and Lady Gibson in 1987.

The judge and his wife were returning from holidays when their car was destroyed by a large roadside bomb just north of the Border.

Judge Cory finds that the Gibsons took no security precautions in regard to their trip, and were liberal with their arrangements. Consequently he found no evidence that would justify the holding of further inquiries.