Drug dealer in "C" class neighborhood, how to get rid of them?

[Robert Hernandez]

I househack a quadplex in a "C" class area. The area is quiet for the most part. We have teachers, groceries employees, and handyman, etc. But, there is one house in the neighborhood where a drug dealer lives. They play loud music in their car and have shady people park there all the time. People are coming and going at all hours of the day. I want to get rid of them.

How can I go about doing that safely?

Also, are there drug dealers in "C" and "B" class area?