The Police Service Commission (Nigeria) The Police Service Commission is to the Police what the National Judicial Service Commission is to the judiciary. The commission which has been in existence since 1979 deals primarily with service or staff matters. It handles with the appointment, promotion, discipline and dismissal of police officers...

Opportunity cost is the potential benefit of an alternative opportunity that must be sacrificed when choosing a specific action. In other words, opportunity cost measures the cost of giving up one opportunity to take another. For example, if you want to buy a new car, you need to give up...