"House hacking" turned bad

[Mike D.]

so I have been renting out rooms in my first house to two acquaintances. One has been out of work for a while and is home all day(trust fund baby). 

apparently he has been selling weed out of my house. I reamed him out when I found out. I told him if I find out it's still going on, he's out no questions asked. He reluctantly said "you're right, I'll stop".  I'm not an idiot, I fully expect it to continue. The lazy *** is home alone all day. 

What would you do? Set up a hidden camera?  I'm at work all day and can't think of a better way to catch him

[Trevor Haasch]

I had a similar incident with a roommate last year. We have a crime-free addendum in our lease. I made it clear he violated the crime free addendum and asked him to vacate within 24 hours which he did. Being that he is living in your house and you can no longer trust him it's best to part ways. He already admitted to it, so cut your losses and find someone else to rent the room that you can trust.