Article D47-1-5 of the French Code of Criminal Procedure
When issuing a European Investigation Order for the seizure of evidence, the magistrate shall specify in the order: either 1° that the evidence is to be transferred to him; or 2° or that it must be preserved in the executing State in order to prevent its destruction, transformation, removal or disposal until a date to be determined by the executing State, without prejudice to the possibility of requesting the transfer…