The Government intends to opt out of a raft of EU police and justice measures, including the European Arrest Warrant, Home Secretary Theresa May announced.
But Mrs May said that Britain is then likely to apply to opt back into some of the 130 cross-border agreements which the Government thinks are in the national interest.
The announcement was warmly welcomed by Conservative backbenchers, but Labour accused ministers of being mired in confusion over the issue, as Ms May was unable to identify which of the agreements Britain will seek to re-enter.
The issue splits the coalition down the middle, with many Conservatives keen to tear up the agreements, while Liberal Democrats insist that elements of the package must be retained.
In a statement to the House of Commons today, Mrs May made clear that no decision has yet been made within the coalition Government over which measures it wishes to hold onto.
Political Correspondent Libby Wiener reports: