Dear Nairalnader,
I found this information while searching for information.
I think we need to know our right before any drop out will start embarrassing  us on Nigeria road.
This information was published on Nigeria police web site.

What to Present at Police Check Point

* Driving License
* Insurance Certificate
* Certificate of Road Worthiness (Commercial vehicles only)

You Don't need to Present

* Vehicle Purchase documents
* Proof of ownership (except if the vehicles is unregistered)
* Receipt of plate number
* ECMR

Check www.nigeriapolice.org for more information

May be we need to print this page and attach to our document because some of our police man/woman didn't even know they have web site not to talk of knowing the information published.

Hope the police will not tell us that they suspect your car as stolen vehicle.

Also make sure you are prepared to produce N50 should such identification be asked for.

The only documentation universally acceptable to Nigerian policemen is cash money, but this must be presented in strict compliance with established protocol. 

Refuse to give up the cash in time and you may stop an "accidentally discharged " rifle round, or conversely give the cash up too hastily and you risk arousing suspicion that your vehicle contains a LARGE volume of cash that may become evident after a search.  Large amounts of cash could inspire the police to "sentence" the motorist to death so as to be relieved of said cash, and so for those who do transport such bulk currency, a vehicle search is most undesirable to say the least.

Correct Nigerian police checkpoint decorum is as follows

1. Stop the vehicle but do not pull off the road unless asked to do so.

2. Listen for the key word "weekend" to be invoked by the policeman, as in " How for the weekend, sir ?"

3. Tender your cash donation such that the officer may pocket it smoothly without giving full account to the other cops on duty.

4. Wave delightedly to the other gunmen as you are granted right of passage and start to pull away.

Any deviation from this MODALITY can cost you your life, reducing you to the status of another DB ( "Delta Bravo" as in unclaimed Dead Body lying in the sun beside the road.

I hope this works in reality and NOT only in theory!!!