Inspector-general of police
An inspector-general of police (IGP) is a high-ranking police officer.
In India, an Inspector General (IG) of Police is a two-star rank of the Indian Police Service. The ranks above this are Additional Director General (Addl.DG) and Director General (DG) of police.
In Chennai,(India) joint commissioner's are at the rank of DIG and only additional commissioner's are at the rank of IG. f
Sri Lanka 
In Nepal, the inspector general of police is the highest rank of the Nepal Police and Armed Police Force.
An inspector-general of police heads the Nigeria Police Force.
The inspector general of police is the highest rank in the Uganda Police Force (UPF). Since 2001, the position has been held by a two-star military general of the Uganda People's Defense Force (UPDF).
United Kingdom 
In Northern Ireland, the chief officer of the former Royal Ulster Constabulary (now replaced by the Police Service of Northern Ireland) was titled inspector general until 1970, when following a review the post was renamed chief constable.
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