Richie Has Prior DUI -- Mandatory Jail on the Line

Nicole Richie could be adding stripes to her wardrobe in the very near future.

TMZ has found court documents which reveal that Richie pled no contest four years ago to driving under the influence. Under California law, if Richie is convicted of DUI as a result of Monday's arrest, the judge must impose a jail sentence.

The law requires a mandatory sentence of five consecutive days in county jail as well as a one year license suspension for anyone twice-convicted of DUI. In addition, Richie would be ordered to attend an alcohol education program for a year-and-a-half, even if the second conviction is not alcohol-related.

As TMZ first reported, Richie admitted to CHP officers that she had taken Vicodin and smoked pot before driving the wrong way on a Burbank freeway. A field sobriety test revealed she was not under the influence of alcohol. Cop: "What have you eaten today?"
Nicole: "French Fries"

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