Is it illegal to keep a wallet you found?

what happened was i was on the bus and the guy next to me got off, when i went to get off i realized his wallet was still next to me so i pocketed it and there was only like 20 bucks in it but as soon as i got off the bus i ditched the wallet in a tree. i know im a peice of **** for it but theres nothing i can do about it now. can i be prosicuted?
Well, no matter what happens, it was a sleazy thing to do and shows you to be a person not to be trusted.

Most people would have made every effort to find the person who owned the wallet and returned it - intact - including the money.

That is called honesty.
it sounds like you feel bad,give it will always feel better...
The Ethical thing would have been to hand it in. But as the old saying goes Finders Keepers Losers Weepers. I wouldn't worry about being prosecuted, they don't have any proof.
You should do the right thing-- go back and try to find the guys wallet, and return it to him. Yes, in some states this is considered petty theft. You better hope no one saw you!
Nah its not illegal to keep it, if people can cross the border and take over our country and that be ok, then your good bro
Yeah, just think if that was YOU that lost your wallet and maybe that was the only $ you had to last a week to eat on or by bus fare or would sure be grateful if someone turned it back to you. This world will only get better if we look at for each other.
You should have sent the wallet back to the person, I am sure he had some identification in there, since you talked about credit cards etc... You are a dishonest person and yes, you are a piece of S. What goes around comes around.
It certainly is illegal. It is called theft of lost property. Bascially if you find property you are supposed to make a resonable effort to return it. If you really needed/wanted the twenty bucks you should have kept it but still turned the wallet in to the police. Not that I am advocating theft but atleast this guys credit cards and person information would still be out there for someone else to steal. Here is the statute in my state I'm sure others have about the same thing.

§356-A. Theft of lost, mislaid or mistakenly delivered property

1. A person is guilty of theft if:

A. The person obtains or exercises control over the property of another that the person knows to have been lost or mislaid or to have been delivered under a mistake as to the identity of the recipient or as to the nature or amount of the property and, with the intent to deprive the owner of the property at any time subsequent to acquiring it, the person fails to take reasonable measures to return it. Violation of this paragraph is a Class E crime; or [2001, c. 383, §41 (new); §156 (aff).]

B. The person violates paragraph A and:
(1) The value of the property is more than $10,000. Violation of this subparagraph is a Class B crime;

(2) The property stolen is a firearm or an explosive device. Violation of this subparagraph is a Class B crime;

(3) The person is armed with a dangerous weapon at the time of the offense. Violation of this subparagraph is a Class B crime;

(4) The value of the property is more than $1,000 but not more than $10,000. Violation of this subparagraph is a Class C crime;

(5) The value of the property is more than $500 but not more than $1,000. Violation of this subparagraph is a Class D crime; or

Pretty lousy thing to do. If there were credit cards in that wallet,you now gave access to someone else that finds that wallet to completely screw up that guys life when his cards are used or worse,his identity is stolen.
I hope you enjoy spending that whole $20.00 you got.
Karma has a way of coming back and biting you in the butt,be ready for it.
Wow!!! Talk about a low thing to do!! Do you have ANY morals? I believe what you did was a form of stealing and in some places it can be considered stealing by law. And yes, some of the buses these days do have cameras. The right thing to do would of been to return the wallet to the man, maybe he would of even given you a $20 reward for your honesty. You just threw his wallet in a tree with his identity and credit cards in it for anyone to find? It is people like you that make me loose my belief that people are still good and selfless. Karma will get you.