Because trash says a lot about a person's activities, a meth lab might break the garbage up and put some of it in with a neighbor's trash.
Meth Lab Signs
Other signs of a meth lab could include dead spots in the yard, since spilling or dumping these chemicals would kill grass. Because meth production involves the use of flammable chemicals, people cooking meth tend to smoke outdoors, away from the building. Occupants of a meth lab might seem secretive and shy, yet entertain a lot of visitors.