Quote from: Welsh on Today at 02:23:15 AM

However, I guess individuals in the police force might not be trusted with that kind of information.

Yes, there are both the options that they don't understand the value a paper wallet can have and not take it seriously (throw it away; 'Nobody will come asking for some piece of paper') as well as the opposite: taking out the funds and being able to plausibly deny it: the finder could have unsealed it, the original owner could have moved the funds, someone else with a backup...

Quote from: Welsh on Today at 02:23:15 AM

Plus, a note could be left which doesn't give too much information away to random people who happen to be passing by.

Exactly; you can quickly create a new email address just for that purpose, for instance.