Can police go through your garbage left for collection outside your home WITHOUT A WARRANT?

Local police suspected Billy Greenwood was dealing drugs from his residence. Because the police did not have enough evidence for a warrant to search his home, they searched the garbage bags Greenwood had left at the curb for pickup. The police uncovered evidence of drug use, which was then used to obtain a warrant to search the house. That search turned up illegal substances, and Greenwood was arrested on felony charges.

Voting 6 to 2, the Court held that garbage placed at the curbside is unprotected by the Fourth Amendment. The Court argued that there was no reasonable expectation of privacy for trash on public streets “readily accessible to animals, children, scavengers, snoops, and other members of the public.” The Court also noted that the police cannot be expected to ignore criminal activity that can be observed by “any member of the public.”

Full case here: California v. Greenwood, 486 US 35 (1988), https://www.oyez.org/cases/1987/86-684