Artikel 15

1. A request for proceedings shall be accompanied by the original, or a certified copy, of the criminal file and all other necessary documents. However, if the suspected person is remanded in custody in accordance with the provisions of Section 5 and if the requesting State is unable to transmit these documents at the same time as the request for proceedings, the documents may be sent subsequently.
2. The requesting State shall also inform the requested State in writing of any procedural acts performed or measures taken in the requesting State after the transmission of the request which have a bearing on the proceedings. This communication shall be accompanied by any relevant documents.