Actress Mischa Barton was pulled over back in December and cops quickly discovered she was drunk and in possession of marijuana. Today she was formally charged by prosecutors on four misdemeanor counts.

The former “O.C.” star was pulled over in West Hollywood, Calif. last year. Cops said she “was seen straddling two lanes of traffic and failed to signal when making a turn.” When deputies pulled her over, they determined that she “was an unlicensed driver and was driving while under the influence of an alcoholic beverage.”

She should be safe. In L.A. you usually don’t serve any jail time until your 7th or 8th DUI.