  The Government has published the legal advice it received over its Brexit deal - which Labour say reveals 'critical weaknessses' in the draft agreement
  The legal advice from  to Theresa May admits the Northern Ireland backstop could "endure indefinitely"
  And it confirms the government would not legally have the power to remove the UK from the fallback position, which would keep Britain in the customs union to avoid a hard border in Ireland, without agreement from the EU
  It comes after MPs on Tuesday found the Government to be in contempt of Parliament for the first time in modern history
  Shadow Brexit Secretary Keir Starmer said: "Having reviewed the Attorney General’s legal advice, it’s obvious why this needed to be placed in the public domain
  "All week we have heard from Government ministers that releasing this information could harm the national interest
 Nothing of the sort. All this advice reveals is the central weaknesses in the Government’s deal
  "It is unthinkable that the Government tried to keep this information from Parliament - and indeed the public - before next week’s vote
 "  The Leader of the House of Commons Andrea Leadsom told BBC Radio 4's Today programme that the Government would release the legal advice, but "not without some regret"
   Read the Brexit legal advice document in full View gallery   She also fired a warning shot at rebels within the Tory Party, saying: "Going forward, not only will Government ministers be very careful about what they ask law officers to give advice on, but law officers themselves will be very reluctant to give any advice to Government that they might then see published on the front pages of the newspapers, so it's the principle of the thing
  Green MP Caroline Lucas tweeted sections of the legal advice, which she said suggested it was not received by the Cabinet until November 13 - the day MPs first voted for it to be released
  Ms Lucas highlighted concerns in the document that the protocol setting out the backstop arrangements for Ireland would "endure indefinitely"
    According to the extracts, she said, a review mechanism in the Brexit deal "does not provide a unilateral route out of the backstop" and there is "a legal risk that UK could become stuck in protracted and repeating rounds of negotiations"
  The government has been forced to make the advice public after MPs found the Government to be in contempt of Parliament for the first time in modern history
   The Commons begin its second of five days of debates on the deal before the December 11 vote, and follows a first day which saw a series of dramatic defeats for the Prime Minister's struggling administration
  In its conclusion, the letter says: "In the absence of a right of termination, there is a legal risk that the United Kingdom might become subject to protracted and repeating rounds of negotiations
  "This risk must be weighed against the political and economic imperative on both sides to reach an agreement that constitutes a politically stable and permanent basis for their future relationship
  "This is a political decision for the Government."  Another section says that as currently written, the backstop "does not provide for a mechanism that is likely to enable the UK lawfully to exit the UK-wide customs union without a subsequent agreement"
  It adds: "This remains the case even if the parties are still negotiating many years later, and even if the parties believe that talks have clearly broken down and there is no prospect of a future relationship agreement
  "The resolution of such a stalemate would have to be political."   
