One-for-one credit of foreign extradition detention in criminal sentencing

The Federal Court of Justice (BGH) rejected the defendant's revision as unfounded, upholding the Leipzig Regional Court's conviction of October 17, 2022, while modifying the judgment to mandate a one-to-one credit for the time served in extradition detention in Poland; the defendant was ordered to bear the costs of the appellate proceedings. The case involved a criminal revision challenging the lower court's sentencing calculation regarding foreign pre-trial detention. The decisive legal basis is the doctrine of extradition detention credit, requiring that time spent in custody abroad in connection with the specific charges be deducted from the German prison term on a day-for-day basis to prevent double punishment and ensure fair sentencing equivalence.