Nicole Richie Faces Jail Time if She's Convicted of DUI

"Simple Life" star Nicole Richie faces jail time if she's convicted of DUI, because she has a prior drunken-driving arrest.

Four years ago, Richie pleaded no contest to drunken driving and got three years' probation. A second DUI conviction is a mandatory five-day jail stint in California.

Richie was stopped in 2002 after blowing a red light and zooming over a speed bump at 50 mph, according to documents obtained by She told cops all she had that day were fries and a shot of vodka.

On Monday, Richie was spotted going against highway traffic. She allegedly admitted she had taken Vicodin and smoked pot earlier.

The New York Post contributed to this report.