The service is under the control of the Ghanaian Ministry of the Interior,[2] and employs over 30,000 officers across its 651 stations.

The Ghana Police Service operates in twelve divisions: ten covering the ten regions of Ghana, one assigned specifically to the seaport and industrial hub of Tema, and the twelfth being the Railways, Ports and Harbours Division.

[3] An additional division, the Marine Police Unit, exists to handle issues that arise from the country's offshore oil and gas industry.

[3] The aim of this is to decentralize the activities of the regional police force for more effective and flexible service.

The Marine Unit was inaugurated in Takoradi on 21 June 2013 by Vice President Kwesi Amissah-Arthur.