Dutchess County sheriff's deputies found a Dover Plains woman carrying small bags of heroin and syringes following a traffic stop in Pleasant Valley, police said.

Cassandra Perri, 26, was a passenger in a car that was pulled over by sheriff's deputies about 2:15 a.m. Thursday on Route 44 after the car was spotted backing up unsafely on the busy county artery, authorities said. Police did not release the identity of the driver, who was not charged with any crime.

Deputies searched the car, the driver and Perri.

Perri was carrying seven packages of heroin and several syringes in addition to a small amount of marijuana, deputies said.

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Perri was charged with fifth-degree criminal possession of a controlled substance, a felony that carries a maximum penalty of seven years in prison. She was also charged with two misdemeanors: fourth-degree criminal possession of marijuana and criminal possession of a hypodermic instrument.

Perri was arraigned in Pleasant Valley Town Court and released without bail. She is due back in court May 21.

Perri could not be reached for comment. Attorney information for her was not available Friday.