Article 723-37 of the French Code of Criminal Procedure
When placement under judicial supervision has been ordered against a person sentenced to a term of criminal imprisonment of fifteen years or more for one of the offences referred to in article 706-53-13, the regional court referred to in Article 706-53-15 may, in accordance with the procedures set out in this article, decide to extend all or part of the obligations to which the person is subject, beyond the limit…