I was helping my friends kids do a park clean up and one of them found a large wad of cash (less than $200). I told the one who found it that I need to check with the police before she can have it, just in case it belongs to someone in need.
But is that a thing? I didn’t want to say she could keep it right away because I want to set a good example. But it isn’t a ton of money so I assume the police would not be interested. So what do?
Where I live you actually don’t go to the police. Anything left of on the street belongs to the municipality so you’d have to go to the municipalities office. That said, I’d think it’s quite hard to track down owners of cash… You can inform the appropriate body in your country that they can contact you if they find the owner. Then after some time (maybe documented somewhere?) you can keep it.