Regardless of the legal instrument on which the request is based, the requesting authority can ask for particular procedural rules to be followed, in accordance with article 694-3 of the Code of Criminal Procedure, providing that such rules must not reduce or impair “the rights of the parties or the procedural guarantees provided by the present Code”.
The request can be refused if it is likely to harm public order or the essential interests of the Nation, as provided by article 694-4 of the Code of Criminal Procedure.
• Under article 5 of the Convention of 29 May 2000, "All procedural documents shall be accompanied by a report stating that the addressee may obtain information from the authority by which the document was issued or from other authorities in that Member State regarding his or her rights and obligations concerning the document."
The same provisions are provided by article 16 of the Second Additional Protocol to the Convention of 20 April 1959.
• Immunity of witnesses and experts : Under article 8 of the Convention of 20 April 1959, if the witness or the expert does not comply with the summons, he or she shall not be submitted, even if the summons contains injunctions, to any sanction or coercive measure, unless he or she subsequently goes voluntarily to the issuing Party and is again regularly summoned.
If the witness or the expert does not comply with the summons, a request for a video conference or hearing may be considered.
• Principle of specialty : The witness or expert who appears before foreign authorities following a summons or the person summoned to appear before the judicial authorities of the requesting party in order to be questioned about facts for which he is the subject of proceedings, can neither be prosecuted there, nor detained, nor subjected to any other restriction of his/her individual liberty for facts or convictions which occurred before he/she left the territory of the requested party (and which are not included in the summons (prosecuted person)) - paragraphs 1 and 2 of article 12 of the European Convention on Mutual Assistance in Criminal Matters of 20 April 1959.
Paragraph 3 of this article provides an exception to this immunity when the witness, expert, prosecuted person having had the opportunity to leave the territory of the requesting State for 15 consecutive days, after his or her presence was no longer required by the judicial authorities, nevertheless remained in that territory or returned to it after having left it.
This is also the case in relation to requests for summonses carried out on the basis of the 2000 Convention of which paragraph 5 of article 5 refers explicitly to the immunity provided under the European Convention on Mutual Assistance.
Subject to the discretion of the Court de Cassation, this principle must also apply to summonses for the purpose of indictment (notifying persons of charges against them).
• Deadline to send summonses to appear in court under the European Convention on Mutual Assistance in Criminal Matters of 20 April 1959 and its protocols, and in accordance with the declaration made by France on 23 May 1967 : at least 30 days before the date fixed for the appearance in court.
• The serving of the procedural document sent by the requesting party can be carried out by simple transmission of the writ or record to the person to be served (paragraph 1 of article 7 of the Convention). "If the requesting party expressly so requests, service shall be effected by the requested Party in the manner provided for the service of analogous documents under its own law or in a special manner consistent with such law." (paragraph 1 of article 7). Furthermore, "proof of service shall be given by means of a receipt dated and signed by the person served or by means of a declaration made by the requested Party that service has been effected and stating the form and date of such service. One or other of these documents shall be sent immediately to the requesting Party. The requested Party shall, if the requesting Party so requests, state whether service has been effected in accordance with the law of the requested Party. If service cannot be effected, the reasons shall be communicated immediately by the requested Party to the requesting Party. (paragraph 2 of article 7, mentioned above).