Below are the Commissioners of Police during the time Head of Government was Maurice Bishop. During this time the name RGPF was changed to the Police Service.*
Headquarters following the 13th Match 1979 governmental change, moved from Fort George [renamed by that time Fort Rupert] to Melville Street, St. George's on 24 May 1979. After the landing of US troops 25 October 1983, Police Headquarters returned to Fort George.
During the time of the People's Revolutionary Government [PRG], the police force was renamed the Grenada Police Service. The name reverted back to the Royal Grenada Police Force [RGPF] following 25 October 1983.
During the time of the PRG, according to Martin,
. . ."RGPF lost virtually all of its historical authority; and was relegated to the control of domestic crimes and traffic supervision. The People's Revolutionary Army and other forces within the PRAF maintained law and order . . .
According to a former version of the RGPF site, "Prior to the year 1984, Police Officers recruited into the force were trained at the Regional Police Training Centre, Barbados and at True Blue in the southern part of St. George's."
The hierarchy of officers: Commissioner, Deputy Commissioner, Assistant Commissioner, Superintendent, Assistant Superintendent, Inspector, Cadet Officer, Sergeant, Corporal and Constable. One will see ACP, for example, which means Acting Commissioner of Police.
Information on the current RGPF is found online.
*Thanks to information provided by the former History Page of the Royal Grenada Police Force web site.