article: The DUP leader said he was not prepared to remain as first minister in a power-sharing government "kept in the dark" about such an important matter. He was speaking after the trial of Donegal man John Downey collapsed. Mr Downey denied killing four soldiers in the 1982 IRA Hyde Park bombing. The case collapsed because he was mistakenly told in a letter in 2007 that he was no longer a wanted man, despite the fact that police in Northern Ireland knew he was still being sought by Scotland Yard. Although police soon realised they had made a mistake, the assurance was never withdrawn. It said a total of about 200 such letters were distributed - mostly under the previous Labour government - to suspects "on the run". The Northern Ireland Office (NIO) has confirmed that all the recipients were republicans. Prime Minister David Cameron told the Commons on Wednesday that Mr Downey should never have been sent the letter and that it had been a "dreadful mistake". Mr Downey's lawyer said his alleged offences had been categorised as one of the on-the-run cases that would no longer be pursued in the light of progress in the Northern Ireland peace process. Attorney General Dominic Grieve told the Commons on Wednesday that the judgement would not be appealed. Mr Robinson called for all letters sent out to be rescinded and "full disclosure" of what had happened. "I am not prepared to be kept in the dark by Her Majesty's government about matters relevant to Northern Ireland," he told the BBC. "I want a full judicial inquiry to find out who knew, when they knew and what they knew. I want to know who they are and what crimes they are believed to have committed." He said he felt deceived by the government, and if he and former DUP leader Ian Paisley had known about this, they would not have entered into power-sharing government with Sinn FÃ©in in 2007. "I am not prepared to be a stooge for Westminster who keep secrets on matters which are now devolved to Northern Ireland," he said. Anyone already convicted of paramilitary crimes became eligible for early release under the terms of the Northern Ireland Good Friday agreement of 1998. The agreement did not cover: Mr Robinson said he would discuss the matter with Northern Ireland Secretary Theresa Villiers at a meeting later on Wednesday. Responding to Mr Robinson's comments, Martin McGuinness, Northern Ireland's deputy first minister, tweeted: "My unionist colleagues need to calm down. We've all come a long way. No sensible person will thank anyone for threatening the institutions." Denis Bradley, a former vice chairman of the NI Policing Board and who co-chaired a group set up to deal with Northern Ireland's past, said he was surprised when unionists said they were not aware of the issue. "I don't know who kept who in the dark because it was very much in the public situation," he said. "It was well briefed at the Policing Board at the time, it may not have been at full board, but
summary: Northern Ireland's First Minister Peter Robinson has threatened to resign unless there is a judicial inquiry into secret letters given to more than 180 Irish republican paramilitary suspects.