Bynes, 28, a child star turned movie actress who has a history of mental health issues and arrests, was taken into custody about 4:10 a.m. by the California Highway Patrol. Bynes was driving westbound on Riverside Drive when she simply stopped her car at the Van Nuys Boulevard intersection after the traffic signal went red, said CHP Officer Leland Tang.
Tang said Bynes' blood was drawn, but he does not know what kind of drugs the actress is alleged to have been using. She was released from custody at 12:44 p.m. Sunday.
An Irvine resident, according to booking information, Bynes had been attending design school in Orange County.
In April 2012 she crashed her car into a Los Angeles County sheriff's deputy's cruiser. She was convicted of reckless driving in February for that incident. L.A. County Superior Court Judge Edward Moreton sentenced the "She's the Man" star to three years of probation and three months of alcohol education classes.
In the wake of the arrest two years ago, Bynes had several run-ins with law enforcement in L.A. and New York that culminated with her setting a fire in the driveway of a Southern California home and being taken into custody on a mental health hold last year by the Ventura County Sheriff's Department.
Bynes entered a psychiatric treatment facility, and her mother, Lynn, was granted conservatorship of the actress.
In recent months, Bynes has been attending the design classes while continuing treatment.
She is already on probation in California for driving with a suspended license and was accused in New York of throwing a glass bong out her 36th-floor Manhattan apartment.