The damage seems to have been made just before he left the condo.. so, after the landlord came with the police.
I don't see any reason for the police to show up as rent debt is a civil matter..
Apparently the police obviously didn't do anything as the tenant "promised" to leave the following month..
Regarding the trashed apartment.. yes seems criminal case but a complain has to be filed and prosecutor should take a decision..I don't think the police can act without court documents (surprisingly on the snaps police seems to help cleaning ???,)
Have a good day