The Heads of Arab Anti-Narcotics Services concluded their 22nd conference which was held at the General Secretariat of Arab Interior Ministers Council here yesterday. The conference was attended by representatives of various Arab countries, including the Kingdom's delegation led by Brigadier General Awwadh Al-Juaid as well as Arab League, Naif Arab University for Security Sciences and UN Office on Drugs and Crime. The Heads of Arab Anti-Narcotics Services issued a number of recommendations aimed at addressing narcotics phenomenon and enhancing Arab cooperation in this field.