Justice.
• EU states lose their veto to block legislation on police and judicial co-operation in criminal matters; legal migration and integration of third-country nationals; measures dealing with those non- EU nationals subject to visa requirements and rules on uniform format for visas.
• Decisions would be taken by qualified majority voting. The European Parliament will get the right of co-decision and can scrutinise draft laws.
• European Court of Justice (ECJ) gets jurisdiction to interpret and review most EU justice legislation, boosting judicial oversight over this area. There will be a five-year transitional period before this can happen for all existing EU laws and rules. (Britain can permanently opt out if it withdraws from existing judicial measures.)
• Ireland and Britain negotiated an "opt in" arrangement where they cannot be forced to adopt new police and judicial co-operation measures. They can also "opt out" of new laws regarding border checks, asylum, immigration and judicial co-operation in civil matters.
• Under Lisbon the Government could be excluded from taking part in EU justice measures to which it has already signed up if it chooses to "opt out" of proposals in the same area. It could also face financial penalties for not taking part in new measures.
• Lisbon creates the possibility for a new European Public Prosecutor's Office to be established to investigate and prosecute offences against the Union's financial interests.