Article D48-2-7 of the French Code of Criminal Procedure
If the person against whom a warrant of committal with deferred effect has been issued fails, without legitimate reason, to appear before the public prosecutor or at the prison on the date set for his or her incarceration, the public prosecutor may enforce the sentence by resorting, if necessary, to the force publique, where the sentence is enforceable or, except in the case of an opposition lodged against a sentence…