Chapter II Collection of Evidence
Article 11 (Request for Issuance of a Warrant)
A request for issuance of a warrant or examination of a witness shall be accompanied with the document set forth in item (iii) of Article 2; except that this shall not apply when a treaty provides otherwise.
Contents of request - other forms of assistance
Information required under the law of the requested State
Contents of request - national law requirements
EDIT.