Special appointments: Rapporteur-General, United Nations International Conference on Drug Abuse and Illicit Trafficking, Vienna, June 1987; Chairman, Tenth Special Session of the Commission on Narcotic Drugs, Vienna (1988); Chairman, Pharmacists' Board of Nigeria (1977-1988); member of a 15-member working group set up by the Secretary-General, on the enhancement of the efficiency of the three drug control units of the United Nations secretariat in Vienna (1990); member of a 10-member ad hoc intergovernmental advisory group established by the Commission on Narcotic Drugs to assess strengths and weaknesses of global drug control efforts (1994); member of the Expert Committee on Drug Dependence of WHO (1992, 1994 and 1998); member of the WHO Expert Advisory Panel on the International Pharmacopoeia and Pharmaceutical Preparations (1979-1997); member of the Advisory Group of the International Narcotics Control Board to review substances for control under article 12 of the 1988 United Nations Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances (1998); member of the High-level Expert Group convened by Secretary-General pursuant to Economic and Social Council resolution 1997/37, to review the United Nations machinery for drug control (1997-1998); Director of the Nigerian Project for the Rapid Assessment of the Drug Abuse Situation in Nigeria (1999); member of the Standing Committee on Estimates of the International Narcotics Control Board (since 2000); Rapporteur of the International Narcotics Control Board (2001).
خبير لدى أكاديمية نايف العربية للعلوم الأمنية، الرياض - المملكة العربية السعودية (غير متفرغ، 1996-1998). مستشار لدى مركز التدريب بكلية الحقوق، جامعة الإسكندرية (1995-1996). أستاذ في أكاديمية الشرطة والمركز القومي للبحوث الاجتماعية والجنائية، في ميدان مكافحة المخدرات.
Special appointments: Rapporteur-General, International Conference on Drug Abuse and Illicit Trafficking, Vienna, June 1987; Chairman, tenth special session of the Commission on Narcotic Drugs, Vienna (1988); Chairman, Pharmacists Board of Nigeria (1977-1988); member of a working group on the enhancement of the efficiency of the three drug control units of the United Nations Secretariat (1990); member of ad hoc intergovernmental advisory group established by the Commission on Narcotic Drugs to assess strengths and weaknesses of global drug control efforts (1994); member of the WHO Expert Committee on Drug Dependence (1992, 1994 and 1998); member of the WHO Expert Advisory Panel on the International Pharmacopoeia and Pharmaceutical Preparations (1979-1997); member of the Advisory Group of the International Narcotics Control Board, to review substances for control under article 12 of the 1988 United Nations Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances; member of the high-level expert group convened pursuant to Economic and Social Council resolution 1997/37 to review United Nations machinery for drug control (1997-1998); Director of the project for the rapid assessment of the drug abuse situation in Nigeria (1999); member of the Standing Committee on Estimates of the International Narcotics Control Board (since 2000); rapporteur of the International Narcotics Control Board (2001).
العضوية: عضو مراسل في أكاديمية الصيدلة (فرنسا)؛ وعضو في عدة جمعيات علمية.