Ranks in the Nigeria Police Force (NPF), Criminal Investigation Departments (CID) in the (NPF)

Ranks in the Nigeria Police (in descending order)

1. Inspector General: This rank is a political appointment
2. Deputy Inspector-General of Police.
3. Assistant Inspector-General of Police.
4. Commissioner of Police.
5. Deputy Commissioner of Police.
6. Assistant Commissioner of Police.
7. Chief Superintendent of Police.
8. Superintendent of Police.
9. Deputy Superintendent of Police
10. Assistant Superintendent of Police
11. Inspector of Police
12. Sergeant Major
13. Sergeant
14. Corporal
15. Lance Corporal
16. Constable

The Nigeria Police Force (NFA) is a law enforcement security agency, it was founded in 1930 and governed by the ministry of police affairs.

The Nigeria Police Force (NPF) has the Authority designated by the constitution with exclusive jurisdiction throughout the country.

There are 15 criminal investigation departments (CID) in the Nigeria Police Force (NPF) which are.

1. Administration
2. Anti-Fraud Section
3. The Central Criminal Registry (CCR)
4. Special Anti-Robbery Squad (SARS). The pressure group End SARS has criticised its activities.
5. X-Squad
6. General Investigation
7. Special Fraud Unit (SFU)
8. Legal Section
9. Forensic Science Laboratory
10.  Interpol Liaison
11. Homicide
12. Anti-Human Trafficking Unit
13. Force Intelligence Bureau (FIB)
14. DCI Kaduna Annex
15. Counter Terrorism Unit (CTU)