San Francisco conviction overturned: Warrantless detention is not supported by collective knowledge of police.
Summary:
Defendant was convicted in the Superior Court, San Francisco County, of domestic battery, and he appealed from denial of his motion to suppress evidence.
The Superior Court, Appellate Division, held the State could not rely on “collective knowledge” doctrine to justify the defendant’s warrantless detention. The trial court failure to suppress evidence discovered during an unconstitutional, warrantless stop of defendant was not harmless beyond a reasonable doubt. The conviction was reversed.