To catch a pot smoker

[Wesley W.]

Hi all,

Okay - here's the situation: shared entrance hallway between two units, and one of the occupants is using the hallway to smoke pot.  I know this because I have been in the hallway a few times in recent weeks and there is a very strong and fresh odor. Lease forbids this, naturally.

I am pretty sure I know which tenant, but I would like to try and get irrefutable evidence.  I sent a general letter to all residents and, not surprisingly, no change.  They have disabled the smoke detector in the hallway as well.

I know if I come in with an accusation, they will immediately blame it on the other unit.

Looking for suggestions...