4th Amendment: searches: There is no reasonable expectation of privacy in these common areas:
- anything you can view, smell, or hear from public property, including from airspace
- - area beyond the curtilage of a home
- ~ the land closely associate with a dwelling, but not open fields beyond that.
- prison cell: but search must be founded on a reasonable suspicion that the arrestee is concealing evidence underneath clothing, and the search must be conducted in a reasonable manner
- garbage left on the curb and other abandoned property
- handwriting or voice samples
- information given to government informants or undercover officers