Вот конкретный док, если юристы вдруг не знают:
Treaty between the Republic of Cyprus and the Union of Soviet Socialist Republics on Legal Assistance in Civil and Criminal Matters
Moscow, 19 January 1984
Entry into force 25 March 1987
Authentic texts: Russian and English
COG S.I 2187, 14.11.1986, p. 1595; Law No. 172/1986