If it isn't on paper, it didn't happen as far as police and courts are concerned.

The house got raided by police for drug use, and I ended up having to ask them to leave.

Cameras and police are ok ideas but remember he’s got all day to  damage stuff around your property. 

@Jessica West-Walker the police will get you a report, but that is about it.

We also have sign police, citizens having a part time job, paid a "bounty", you'll be paying the fine, the bounty if one, plus court costs. 

I encourage all others who have been swindled or have had similar experiences to share them too and to submit complaints to the Better Business Bureau, Department of Consumer Affairs, Consumer Financial Protection Bureau, State Board of Accountancy, Federal Trade Commission, Police Department’s Financial Crime Unit, and the District Attorney.

I need an insurance agent that can write property and life insurance polices in Missouri, Virginia, Florida, and California.

Now rank them in descending order.  

If you ever notice people (non tenants) loitering afterward, call the police and have charges pressed against them.  

But when the police called me to tell me why they did the warrant, he described the event and then added "and they have two big Pit Bulls.