EXCLUSIVE: Mischa Barton Out Of Control, Partying Details

Radar Staff

July 17 2009, Published 9:52 a.m. ET

Drugs, alcohol and out-of-control partying have been a central part of rehab-graduate Mischa Barton's life for at least two years, sources

close to the actress tell Breaking Celebrity News.

More photographs of Mischa spinning out of control!

Mischa was placed on an involuntary psychiatric hold Thursday by Los Angeles police and taken to Cedars-Sinai Medical Center. Breaking Celebrity News obtained exclusive eyewitness details of the star out partying in recent months.

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Her drug "secret" became public in 2007 when she was photographed smoking what appear to be a joint in her car, as you can see by the Breaking Celebrity News photo.

Read update on Mischa's psychiatric hold

Breaking Celebrity News reporters saw her earlier this year at the Los Angeles club Bardot smoking a joint at her table in the smoking section. She was

stumbling across the club and appeared bloated.

In January of this year she was at the Troubadour club in Los Angeles to see the group the Cold War Kids. "She's obsessed with the band," said a source who saw her there. The source said Mischa was again smoking dope and was romantically pursuing the group's lead singer.

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She was spotted at Chateau Marmont with the Cold War Kids in February and eyewitnesses told Breaking Celebrity News, "She tried to hook up with the lead singer but was turned down and ended up coming on to the drummer. She was a mess. Totally out of it."

Months before, at the end of 2008, multiple sources told Breaking Celebrity News they saw Mischa partying in LA several nights a week. On Dec. 27, 2007, she was pulled over and arrested for DUI and marijuana possession, and later released on $10,000 bail.

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The followng year in April, Barton struck a deal with prosecutors and received 3 years of unsurpervised probation, had to pay a $2,000 fine and attend alcohol education classes.

In an interview with Marie Claire UK, Barton said she chose to go to rehab at the time because, "I wanted to prove to the court that I would

take it completely seriously. I went to rehab to prove I was sober."

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