MASSACHUSETTS: In a decision hailed by civil rights advocates and supporters of marijuana legalization, the state’s highest court ruled Tuesday that police cannot stop motorists solely because they suspect the vehicle’s occupants are in possession of the drug.

The Supreme Judicial Court based its 5-2 ruling largely on a measure that voters approved in 2008 that reduced possession of an ounce or less of marijuana from a criminal offense to a civil violation punishable by a fine.

“Permitting police to stop a vehicle based on reasonable suspicion that an occupant possesses marijuana does not serve [the] objectives” of the law change, Justice Margot Botsford wrote for the majority.