The slain officer was allegedly beaten and killed by policemen in Nyanya area of Abuja during the week.
The Police chief also assured that there will be no cover up in the investigation.
The Police, in a statement in Abuja by the Force Spokesman, ACP Frank Mba assured the families of the deceased that everything humanly possible will be done to ensure justice prevails in the case.

The IG also said the NSCDC along with the family of the deceased, may, for the purpose of transparency, nominate any medical doctor of their choice to witness the autopsy, at the appropriate time and venue.
The Police said the autopsy will help the investigators to have a definitive understanding of the real cause of death of the deceased.
The IGP however called for calm from the family and friends of the deceased and the entire public, reiterating that the case will not be swept under the carpet.