Article D49-40 of the French Code of Criminal Procedure
When the sentence enforcement judge or court grants one of the measures mentioned in articles 712-5,712-6 and 712-7, the measure may not be enforced until twenty-four hours have elapsed from notification of the decision to the public prosecutor, in the absence of a visa from the latter indicating that he or she is not appealing; if the public prosecutor lodges an appeal within twenty-four hours of notification, he or she…