The Lewis County Sheriff's Department arrested Amy Renee Swager, 34, and charged her with possession of a controlled substance.

The criminal complaint says that Lewis County Sheriff's deputies executed a traffic stop related to an expired registration.

Deputies said a plastic baggy containing a white powder fell from her shorts, according to the criminal complaint.

Swager admitted to shooting heroin and a syringe filled with heroin was found on her person, deputies said.

A plastic bag containing ammonium nitrate was also found on the floor of a vehicle.