Europäischer Haftbefehl

Article 16 II German Basic Law (GG) states that no German may be extradited to a foreign country outside the European Union

extradition for prosecution in Poland subject to the condition that the Ambassador of the Federal Republic of Germany in Poland or a person commissioned by him is entitled to take part in the main trial conducted against the persecuted person and to visit the persecuted person in custody in the event of a conviction

Court was concerned with establishing the scope of its own substantive jurisdiction covering measures of telecommunications surveillance in extradition cases.

obstacle  if an investigation procedure should have been  carried out by the  prosecutor against the  German national 

Karlsruhe Higher Regional Court on the extradition of German nationals