The European Court of Human Rights took a decision some time ago when they said "tapping and other forms of interception of telephone conversations represent a serious interference with private life and correspondence and must accordingly be based on a law that is particularly precise.
Den Europæiske Menneskerettighedsdomstol kom for nogen tid siden med en afgørelse, hvori det hed, at optagelse og andre former for aflytning af telefonsamtaler udgør et alvorligt indgreb i privatlivets fred og den private kommunikation og skal derfor have hjemmel i en lovgivning, der er særligt præcis.