Lohan Posts New Bail After SCRAM Set Off

June 9, 2010— -- Lindsay Lohan is in hot water again -- this time over her court-ordered alcohol-monitoring ankle braclet.

According to People magazine, Lohan's ankle monitor sounded an alarm Sunday night while she attended an after-party for the MTV Movie Awards. It's unclear why the alarm was triggered, but typically authorities are alerted when the device is either tampered with or the person wearing it consumes alcohol.

Whatever the reason, it was enough for Beverly Hills Judge Marsha Revel to issue a bench warrant late Tuesday for Lohan's arrest, claiming the 23-year-old actress was "in violation for conditions on bail," according to US Weekly.

Because of the violation, Lohan's previous $100,000 bail has been revoked. The Los Angeles Times reported that the actress posted new bail of $200,000 to avoid being detained.

On Wednesday, Lohan's attorney and the prosecutor were back in court for a closed-door session with Revel. Lohan, who is due back in court July 6, was not required to appear.

After the hearing, Lohan's lawyer, Shawn Chapman Holley, told TMZ that Lohan's anklet device "indicated the presence of a small amount of alcohol on Sunday night."

"Having just received the report, I am not in a position to speak to its accuracy or validity; however, Ms. Lohan maintains that she has been in complete compliance with all of the terms of her probation and her bail," Holley said.

In messages posted on her Twitter account, Lohan also denied that she had done anything wrong and said the anklet, known as a SCRAM, or Secure Continuous Remote Alcohol Monitor, should have detected nothing.

"I did not violate anything at all," she tweeted. "My SCRAM wasn't set off ... It's physically impossible considering I've [done] nothing for it to go off. All of these false [reports] are absolutely wrong."

Lohan was fitted for the device May 24 after she failed to show up for a mandatory hearing on her probation related to an earlier DUI case.

Last month the actress used Twitter to send out a plea to French fashion powerhouse Chanel.

"can CHANEL please help me out by getting me some stickers to put on my scram bracelet so that i can at least wear a chic dress?! maybe!? x," she tweeted.