Anonymous call is a good idea. People may then assume you are behind the call, but it could have been a rival that called or a disgruntled customer. Or someone else who suspects meth cooking there.

You know, if others try to frame this as your problem, as you supposedly getting revenge or being too nosy or harassing, you can turn the tables on them.

You can frame the issues. "I am concerned about the safety and health of our community and I am willing to stand up for this. There are strong noxious fumes coming from that apartment. If it is really just incense, now we know, and we can talk about reduction in the use because it is negatively affecting neighbors. If it is meth cooking going on, we really need to know and we need help in cleaning it up. As a community member, I care about our safety."

People involved with meth will tend to lie and be paranoid. Saying "Go ahead, bring the cops here, nothing is going on." is of course no guarantee that they are honest. I've heard many a dealer say that.

Just think, if it was just incense, they could have said something like......."Oh god, I am so sorry, I didn't realize the incense smoke was so strong. I'll burn less, let me know anytime if it gets to be too much again. Sorry about that."

Once someone lets the police know of possible meth cooking, it is up to the police whether they act on the info or not. The ball is then in their court. You have the right to let the police know of your concerns, anytime.