Threats of intimidation connected to a residence. Open exchange of drugs and money. Gang activity in area. Graffiti on structure or in area. Sudden increase in criminal activity.
Prevention is the best way to stop drug houses.
You can reduce the chance that a drug house moves into your neighborhood. Start a neighborhood watch and get to know your neighbors. Meet and know your Community Police Officers. As problems develop in the neighborhood, work with the police to resolve them quickly. One of the tools of the drug dealer is intimidation.