Book IV: Some special procedures

If there are reasons to assume that a Member State holds information falling within the scope of Article 695-9-31 useful for the prevention of an offence or for investigations to establish proof thereof or to track down the perpetrators, the services and units referred to in the same Article may request that it be passed on to the competent services of that State. The request for transmission shall set out…

The information obtained may only be used as evidence with the consent of the Member State that transmitted it.

The information obtained may be used for purposes other than those for which it was communicated only with the agreement of the Member State which transmitted it. However, even in the absence of agreement, it may be used to prevent a serious and immediate threat to public security. Furthermore, the provisions of the first paragraph do not prevent the judicial authorities from exercising their powers under Articles 12 and 13….

At the request of the Member State which transmitted the information, the service or unit which obtained it shall inform the competent service of that State of the use made of it.