Below is a quick guide on how to deal with the Police:
1. As a new wig, never trust a policeman or woman when they give you guarantees or make promises. No policeman is honest. Yea, there might be an exception to this but then the exception goes to prove the general rule.
2. Do not be hostile but show no signs of fear or weakness when dealing with them. Police may hate you more for being very fierce and aggressive but then they won’t love you either if you are calm and gentle. They will take advantage of you.
3. Aggression and fierceness though recommended (but should be sparingly used) scares the shit outta the police. The police station is where people are broken down and feel it’s the end of the world, so a lawyer barking and raising hell in a station with junior officers cowering is a sight policemen avoid like hell. It destroys their perceived invisibility. But like I said, use same sparingly and know when to stop otherwise, the police could arrest you for “conduct likely to cause breach of peace”.
4. Be smart. Play on the junior officers’ intelligence. The junior officers most times are not the recipients of the “bail money” but senior officers. Promise them something after you have secured the release of your client. They will quickly run around with the little you can offer for bail to the sum demanded, with the hope that they will receive extra money which the seniors won’t be part of (will tell you a funny story on this point later on).
5. Dangle some cash or promise of cash. Forget hierarchy, the police worship cash and their desperation makes them easy magas. Dangle a carrot or two to some officers if you meet a group that is hostile, that will break their solidarity. In fact you need not make the offer, one of the officers will approach you to help with his colleagues.
He will promise to help you get in touch with the superior who is not in the office, he will ask for N100 to buy recharge card. Give him N500 and watch how his countenance changes. He will work against his colleagues for more and usually without demanding for any cash first. Well after, he helps you secure the release of your client, what do you do?
Give him something for “helping” you release your client they ought not to have arrested in the first place by collecting say N5, 000 instead of the N50, 000 they had asked for initially? You must be joking!

CULLED FROM NAIJA POLICE; A LAWYERS' FRIEND OR FIEND!
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ok noted

very true