In the UK, there is no lower limit on a threshold on “theft by finding”, and indeed in a recent case in the UK a woman ended up with a criminal record and a conditional discharge for not handing in £20 she found on the floor.
The general advice for the UK tends to be to either hand it in immediately - either at a police station, or if you found it within an ...
Duty of finder - Section 67 of the Civic Government Scotland Act 1982
no threshold is stated, by non compliance fine of £ 50
If you find cash, please hand this into your nearest police station. Cash that is not reunited with the owner is donated to charity.
The item I've found is of low value or can't be ...