Part I
General
CHAPTER II
General rules of procedure
Article 20
Language to be used
1. Requests for co-operation shall be accompanied by a translation into the official language of the requested State, unless otherwise stipulated in a convention or agreement, or unless that State exempts from the need for a translation.
2. The provisions of the preceding paragraph shall also apply to the requests addressed to Portugal.
3. The decisions concerning the admissibility or the refusal of a request for co-operation shall be notified to the authority of the requesting State, accompanied by a translation into the official language of that State, save in the cases mentioned in paragraph 1 above.
4. The provisions of this Article shall also apply to the documents that accompany the request.
Language
Language of requests for cooperation
EDIT.