Actress Lindsay Lohan, left, talks with her attorney Shawn Chapman...

Actress Lindsay Lohan, left, talks with her attorney Shawn Chapman Holley at the Beverly Hills Courthouse for a probation status hearing. The 23-year-old actress returned from France after missing her hearing last week for a progress report on her probation for her August 2007 no-contest plea to drug and alcohol charges. (May 24, 2010) Credit: Getty Images

A Los Angeles judge Tuesday said Lindsay Lohan violated the terms of her bail when her alcohol monitoring bracelet went off after her appearance at the MTV Movie Awards Sunday, and set a bail amount of $200,000, The Associated Press reports.

L.A. Superior Court Judge Marsha Revel, who has taken a stern line following Lohan's missed and late court appearances, also issued a bench warrant for Lohan's arrest if bail were not posted. said a bondsman from the large Southern California company David Perez Bail Bonds was posting the $200,000 bail.

The site noted Lohan has forfeited the $100,000 bond her representatives put up on May 20, when the judge allowed her to be free on bail after her no-show at a scheduled hearing that day.

Revel told Lohan's attorney, Shawn Chapman Holley, and Deputy District Attorney Danette Meyers that she made her decision after receiving "results" issued by a court-ordered alcohol monitor - presumably Alcohol Monitoring Systems, the Denver-based company that is the sole manufacturer of the Secure Continuous Remote Alcohol Monitor ankle bracelet.

Lohan, 23, is on probation in a 2007 DUI case. She has been required to wear a SCRAM ankle bracelet since her last court hearing, on May 24.

According to the company, the SCRAM samples the "insensible perspiration" in the air above the skin every half-hour to capture alcohol readings.

At intervals it sends the stored data via radio signals to a base station.

Spilled alcohol and tampering show up differently on the graphs that the human monitors read.

Lohan attended at least one award-show after-party, at the Las Palmas club, reported the Los Angeles Times.

Neither Holley nor Meyers spoke to reporters after the hearing. Lohan is due back in court July 6, when Revel will decide whether Lohan has violated her probation in addition to her bail. If so, Lohan could be sentenced to 180 days in jail.

Lohan has been on probation since August 2007 after pleading guilty to misdemeanor drug charges and no contest to three driving charges.

"i did not violate anything . . . at all," the actress tweeted Tuesday night.

"People are desperate for a starlet tragedy!" she said earlier in the day on her Twitter feed. "It makes them feel better about themselves. It is just unfortunate and unfair because it distracts from the fact & the truth that i'm in such a good place."

Lohan's father, Michael Lohan, who earlier in the day had told Newsday about his help in launching a new nightclub in Westhampton Beach, was preparing late Tuesday to fly to California.

"I'm panicking. . . . I don't want my kid in jail," he told "I have to cancel two huge meetings and get [myself] out to Los Angeles now because I'm fighting to get my daughter the help she needs."

He added, "I hope the judge and the district attorney see, once and for all that this is a girl with a serious addiction who needs help now."

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