Griffin v. Wisconsin, 483 U.S. 868 (1987), was a case decided by the Supreme Court of the United States on June 26, 1987.

The court decided that the warrantless search of a probationer's residence based on "reasonable grounds" in accordance with a state probation regulation did not violate the Fourth Amendment.

The state trial court denied Griffin's motion to suppress the evidence obtained and he was convicted.

[2][3][4] In a 5–4 decision delivered by Justice Scalia, the Court held that the warrantless search of Griffin's residence did not violate the Fourth Amendment as the search was conducted "pursuant to a regulation that itself satisfies the Fourth Amendment's reasonableness requirement under well-established principles.

"[1] The Court further reasoned that a state's probation system presented " 'special needs' beyond normal law enforcement that may justify departures from the usual warrant and probable cause requirements.