We seem to be going in the opposite direction.
Effective policing in most Nations is made of a unified police body that has specialist units within it to focus on special areas of security interests; but all under the same command and control system and sharing unified databases for joined up intelligence led policing.
The trend globally in the security sector, is to join-up activities of different agencies & reduce their number to barest minimum. We seem to be going in the opposite direction. You can finish serving sentence for robbery in Uyo & travel to Lagos next day to join the Police.
Historically, while the military invested and modernise themselves infrastructure-wise when they were in power, the police was deliberately under-funded and neglected. So d continuing negative public perception of d role & capacity of the police is a perfectly inevitable outcome.