The competent authority transmits to its foreign counterpart a certified copy of the case papers. The originals of the case papers are retained by the issuing jurisdiction which retains jurisdiction over the case (remains seised of the case). The requesting authority must enclose, with the procedural documents, the evidence which it holds. However, the requesting authority may consider it preferable not to transfer the evidence until it has obtained the assurance of the authorities of the requested Party that they intend to take over the prosecution.
It is important to point out that, in respect of requests that are transferred via the Ministry of Justice, the Office of International Mutual Legal Assistance in Criminal Matters ensures a regular follow-up, every four to six months, depending on the country, of transfers of proceedings that have been transmitted and in respect of which most of the conventions provide an obligation to keep the requesting State informed (France, in this case) of the action that has been taken in the foreign State with regard to the transfer of proceedings and to transmit, where applicable, a copy of the decision which has been taken. This is specifically to avoid the possibility of any offenders going unpunished and to enable the requesting State to prosecute the case in France without running the risk of prosecuting a person twice for the same conduct/offences (double jeopardy). The receiving authorities within the requested State must ensure, for their part, that they are equally competent to prosecute and to convict in relation to the facts/offences and the perpetrators. They can then proceed with the prosecution in accordance with their own national rules of criminal law and procedure. They are never bound (required) to commence a prosecution.
Throughout the proceedings and then upon completion of the proceedings the authorities of the requested State shall inform the requesting authorities of the outcome of their request so that they will be able to have confirmation that the proceedings have gone ahead and been completed. The Chancellery will transmit to the French prosecution service which carried out the official transfer of criminal proceedings the information thus obtained from the foreign authorities. In the light of this information the French judicial authority, which still has jurisdiction over the proceedings, will consider what course of action to take. The closure of the criminal proceedings that have been commenced in France can only take place, at the earliest, at the moment when the defendant is brought before the court of the foreign State (committed for trial) and at best when the sentence passed in the foreign State has been served completely or the limitation period of that sentence has expired. The grounds for ending the proceedings in France will, in this case, be the ending of the prosecution on the basis of the fact that the matter has been prosecuted in another country. In this way France will have certainty that the offences have not remained unpunished.