In Russia this is explicitly illegal (even if you give all device passwords to the police) - you must identify all people who have access to your network, i.e.

In Russia this is explicitly illegal (even if you give all device passwords to the police) - you must identify all people who have access to your network, i.e. not let unidentified people in, or go to jail if there is a possibility for strangers to connect, even if nobody actually connected.