The twelve Member States: Belgium, Denmark, Germany, Ireland, Greece, Spain, France, Italy, Luxembourg, Netherlands, Portugal, United Kingdom 7 February 1992, Treaty on European Union (Nice consolidated version)#Title VI: Provisions on police and judicial cooperation in criminal matters#Article 30#Article K.2 - EU Treaty (Maastricht 1992)#

12002M030 Treaty on European Union (Nice consolidated version) - Title VI: Provisions on police and judicial cooperation in criminal matters - Article 30 - Article K.2 - EU Treaty (Maastricht 1992) - Official Journal C 325 , 24/12/2002 P. 0022 - 0022 Official Journal C 340 , 10/11/1997 P. 0163 - Consolidated version Official Journal C 191 , 29/07/1992 P.