The Treaty of Amsterdam gives the United Kingdom the right to decide on its involvement in EU legislation in the area of justice and home affairs on a case-by-case basis (opt-in/opt-out). Alongside police and judicial cooperation on criminal matters, this applies to the external borders, asylum, migration and cooperation on civil matters. Thus, the United Kingdom opted out of the Blue Card Directive, the Directive on the status of third-country nationals who are long-term residents and the Directive on the return of third-country nationals, for example. This means that the authorities cannot access the Visa Information System.
At the same time, however, the British government benefits from individual legislative acts to combat and prevent undesired migration. British authorities are not part of Frontex, yet take part in Frontex measures via bilateral agreements (e.g. joint deportations). „The United Kingdom will have to withdraw from Europol by next spring“ weiterlesen