Executive Director of United Nations Office on Drugs and Crime in Vienna Ghada Wali met on Tuesday with HE Permanent Representative of Qatar to the United Nations and international organisations in Vienna ambassador Sultan bin Salmeen al-Mansouri. The meeting dealt with reviewing bilateral co-operation between Qatar and the UN Office on Drugs and Crime. Wali praised Qatar's vital role in supporting the UN Office in various activities, in addition to tackling terrorism, organised crime, human and drug trafficking.