A video showing an angry policeman who refused to let go of a motorist because of 50 naira tip has found its way online.
The officer, who didn't know he was being recorded, was captured standing in front of the car and insisting that the driver tip him before leaving.
With the driver stalling on the payment, the officer hit the car bonnet as the driver screamed and gestured towards the policeman.
It took the intervention of his colleague, who ordered him to let the vehicle go before he did.
Police brutality and extortion are two of the most rampant crimes committed by men of the force, with the regular assault of citizens leading to online protests.