Another questionable activity involves backing the vehicle into the garage
, even for short visits, and always using the garage door. There is often no trash piled in front of a grow house for weeks, and when there is it usually consist of things like plastic pots or empty plastic soil and fertilizer bags instead of normal household garbage. Trash from interior construction, scraps of PVC piping or aluminum shielding can also be indicators that an illegal operation is going on in the area.