Here's one case on LA Police Watch worth reading:

"Bruce v. Beary, 11th Cir. Case No. 06-15304, 9/6/2007. Based on report of improper VIN, sheriff�s department SWAT team conducts armed raid on auto repair shop as an �administrative search�; holds employees at gunpoint all day; refuses to consider evidence of lawful ownership; seizes business and personal property; retains it even after courts rule the search was unlawful. Trial court dismisses �1983 claims on summary judgment. Vacated and remanded. Administrative searches can be based on some suspicion of criminal activity, but must not be conducted like warrant-based search (e.g., holding employees at gunpoint for ten hours); must be limited in scope. This was a criminal raid.