I some countries like Denmark Lost & Found is regulated by a law from 2014. Here is an extract:
You can read more at https://www.retsinformation.dk/eli/lta/2014/879
The CrowdEyes MobileApp is intended for sharing lost & found information according to Terms of use!
1. Objects which you've lost, or objects you've found that you assume someone is missing
2. People missing
3. Pets missing
4. Witness something that may affect certain people or that is merely of general interest.