NSW has "theft by finding"..
"Larceny by finding is covered by section 117 of the Crimes Act 1900. The maximum penalty for this offence is five years imprisonment if dealt with in the District Court, and two years imprisonment if dealt with in the Local Court. This offence will almost always be dealt with in the Local Court. If a person is found guilty of stealing by finding, the court can impose a range of other penalties including dismissing the charge with no other penalty (section 10(1)(a) dismissal), placing you on a Conditional Release Order (CRO) with or without a conviction, convicting you but not imposing any other penalty (s10A), fining you, or placing you on a Community Corrections Order or an Intensive Corrections Order.
The penalty you receive will depend on a number of circumstances including the value of the item or money taken, other circumstances around the offence, your criminal record and whether or not you pleaded guilty. If you are facing a charge in relation to this offence it is important to obtain legal advice before you enter a plea. A criminal lawyer will be able to advise you on aspects of the law relevant to your case, including whether you may have a defence, or fight for you to get the best possible outcome if you plead guilty."
source:
https://www.gotocourt.com.au/criminal-l ... al%20Court.