European Convention on Mutual Assistance in Criminal Matters

(ETS No. 030)

Open for signature by the Members of the Council of Europe, in Strasbourg, on 20 April 1959.

Entry into force: 12 June 1962.

Summary of the treaty

Under this Convention, Parties agree to afford each other the widest measure of mutual assistance with a view to gathering evidence, hearing witnesses, experts and prosecuted persons, etc.

The Convention sets out rules for the enforcement of letters rogatory by the authorities of a Party ("requested Party") which aim to procure evidence (audition of witnesses, experts and prosecuted persons, service of writs and records of judicial verdicts) or to communicate the evidence (records or documents) in criminal proceedings undertaken by the judicial authorities of another Party ("requesting Party").

The Convention also specifies the requirements that requests for mutual assistance and letters rogatory have to meet (transmitting authorities, languages, refusal of mutual assistance).