I.-The request for authorisation to disclose connection data referred to in the second paragraph of Article L. 450-3-3 specifies for each investigation:
1° The name of the person suspected of having taken part in the offences and breaches mentioned in I of Article L. 450-3-3 or the name of any other person for whom access to connection data appears necessary to the investigation or, where applicable, the telephone number, IP address or any other connection data in the possession of the investigators and for which additional elements are necessary to the investigation ;
2° The connection data or types of connection data requested for each person or in each case mentioned in 1°;
3° The periods for which the connection data is requested;
4° The factual and legal elements justifying the request.
If necessary, additional requests may be made in respect of an investigation for which a request has already been made.
II.-The request for authorisation to communicate connection data referred to in the second paragraph of Article L. 450-3-3 addressed to the controller of connection data requests and the prior authorisation issued by the latter referred to in the eighth paragraph of Article L. 450-3-3 shall be made in writing and transmitted by any means enabling confidentiality to be ensured and receipt to be certified.