At the apex of this organization sits the Controller-General of the Nigerian Correctional Service. He is responsible to the President through the Minister of Interior and the Civil Defence, Fire, Immigration and Corrections Board which the Minister heads.
He is assisted by eight (8) Deputy Controllers-General (DCGs) who head the six broad administrative divisions called Directorates into which the Service is broken for efficient management. The Deputy Controllers-General who head the Directorates report to the Controller-General and constitute together with the Controller-General the highest decision-making body in the Administration of the Nigerian Correctional Service.
The Directorates are specialized divisions charged with the responsibility of coordinating specific areas of prison administration. There are, as stated earlier, six directorates in the Prisons Service. They are: