Article 713-20 of the French Code of Criminal Procedure
Without prejudice to the application of Article 694-4, enforcement of a confiscation order shall be refused in any of the following cases: 1° If the certificate is not produced, if it is drawn up incompletely or if it manifestly does not correspond to the confiscation order; 2° If immunity prevents it or if the property, by its nature or status, cannot be subject to confiscation under French law ; 3°…