Cowboi,
Some police officer or should i say most of them are greedy.i had also an experience me and my frend where in there's a road block and they trying to get some money for us around 200 kina ..but my friend insist that we dont have any violation. if we pay you on our violation can you gave us receipt my friend answer him. and the police officer answered if i will give you receipt you will pay not only 200 kina for your violation..
to make it short they only just want money..di did not gave any amount for that police officer.