Prison and Probation Service of Finland, Central Administration is authorized to decide about the enforcement of the sentence. However: the Helsinki District Court is authorized to decide when the case concerns: -provisional arrest, -consent of sentenced person in case of FD909 art 18(1)(f), -consent related to speciality rule according art 18(2)(g) and -adapting the sentence according FD909 art 8(2) and 8(3).