H.E Mohammed Ahmed Alhassan was enlisted into the Ghana Police Service in 1979 as a Chief Inspector of Police, graduating from the Police College in 1982 as Assistant Superintendent of Police, with honour. Mr. Mohammed Alhassan held many Command Appointments nationally and internationally.   In Ghana, he served as a practical career officer in all the command   positions from the field to the Headquarters. He was appointed first as Acting Inspector-General of Police (IGP) in February 2013 and   later as substantive IGP in May, of the same year. Mr. Alhassan Chaired the Association of West Africa Police Chiefs in 2014.

 Contribution to Police Development

 IGP Rtd. Mr. Mohammed provided a wide range of law enforcement advice, guidance, and direction, including reforms and restructuring initiatives in the Ghana Police Service and various Police and National Law Enforcement Agencies worldwide.

In the area of reforms in Ghana, he is credited with the change in policy and operational direction from reactive policing to proactive policing, which focuses on crime prevention. Central to this new approach is establishing the Patrol Department, which now serves as the flagship programme of the wider reform agenda for the Ghana Police Service. The patrol strategy is serving as a proactive deterrence to crime, as increased visibility in communities reduces the fear of crime among law-abiding citizens.

The concept was reinforced by the introduction of the Public Confidence Reaffirmation Programme, which re–kindled the trust and confidence of the public in the Police. Other initiatives included the re-invigoration of the Community Policing Concept, which he introduced in Ghana in1987 when he was a District Officer at Adabraka, the Tent City Policing Concept in 1994 while then as the Tema Regional Commander and the facilitation of the Highways Patrol concept in 2002 when he was the Deputy Commissioner, National Police Operations, which are all critical proactive strategies  which made the Police more responsive to violent crime such as armed robbery in the country. Some of his reforms and restructuring initiatives also included reorganizing and    transforming the former Armoured Car Squadron into the Formed Police Unit (FPU) to meet contemporary law enforcement dynamics and challenges.

The FPU, which deployed for the first time in the history of the Service to International Peace Operations in South Sudan in 2015 has since remained integral to Ghana’s Support to global peace and security. He also established the Ghana Police Command and Staff College in 2013 to meet the human resource capability needs of the Senior leadership of the Service. In 2014, he established Police Public Safety Training School in Pwalugu.

International Appointments and Contributions

On the international scene, IGP Mr. Mohammed Alhassan has held various   appointments with the United Nations (UN). He was appointed interim United Nations Police Adviser to the UN Secretary-General at the UNHQ, New York in 2007, having served earlier as UN Police Deputy Commissioner and then Commissioner for UN Mission in Liberia in 2005-2008. Between 1999 and 2002, Mr. Alhassan was appointed Desk Officer at the Department of Peace Operations at the United Nations Headquarters, New York, responsible for Mission Management in Europe, Latin America, and the Middle East.

He has extensive legacies in the UN circles, including being UNMIL UNPOL Commissioner in 2005 and leading the reforms and restructuring initiatives of the Liberian National Police.

His contributions as Police Adviser to the UN Secretary-General contributed to the establishment of the Standing Police Capacity (SPC) to start up, rejuvenate/rescue, and sustain police roles in UN Peace Operations Missions around the world.

He served with the International Police Task Force (IPTF) in Bosnia Herzegovina 1997.

He also served as Station Commander Khorixax and District Commander Otziwarango with the UN Mission in Namibia (UNTAG)1989.

Education

He completed National and International Security studies at the Harvard Kennedy School, Harvard University, Boston,   USA. He holds an M.Sc. Degree in Police Administration and Criminology from the University of Cardiff, UK, and a BA Degree from the University of Ghana, Legon. He has attended numerous management and leadership training programmes worldwide and has been a resource person for UN Peace operations training programmes worldwide

Conferred with THE STATE HONOUR OF COMPANION OF THE ORDER OF THE VOLTA (CV). He was appointed as member of Council of State in 2025.