Dec. 19, 2011: Troubled Teen Mom star Amber Portwood once again found herself in police custody just months after being convicted of assaulting her ex-fiance, Gary Shirley. The assault was captured on tape by MTV crews during the filming of Teen Mom. Shirley is the father of Portwood's 3-year-old daughter, Leah. Portwood, 21, was given a 2-year suspended jail sentence, but now faces considerable jail time for violating her probation. According to court records, Portwood got into a fight at a restaurant last month, and was accused of battery and public intoxication. The Associated Press reports that Portwood has failed to obtain her GED and attend anger management classes, both terms of her probation. On December 16, Portwood allegedly missed a meeting with her probation officer. When two officers showed up at her door, she was reportedly under the influence of "a mood-altering substance," according to a report by the Indiana Probation Department. The report further states that when officers attempted to administer a drug test, Portwood refused. She is being held at Madison County Jail without bail pending a January 13 hearing.

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