Eddie Cibrian's ex-wife, Brandi Glanville, pled not guilty Thursday morning to charges related to her October 2010 DUI arrest, RadarOnline.com is reporting exclusively.

Glanville was not present in the Beverly Hills court when her lawyer entered the plea on her behalf.

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The model and mother of two was charged with driving under the influence of alcohol or drugs, and driving with a blood alcohol level of .08 or higher.

If convicted of the charges, she could face up to six months in jail, and a $1000 fine.

9:08 a.m. PST: The judge has thrown the book at Lindsay. Her bail was revoked. She was handcuffed and taken into custody. A probation hearing was set for October 22nd. Lindsay appeared stunned.

8:22 a.m. PDT: Lindsay has entered the courtroom. Her mother Dina is there. Her father Michael was held at the courthouse doors. He said, "I love you." Lindsay did not acknowledge him.

8:08 a.m. PDT: Lindsay has arrived at court.

8:01 a.m. PDT: Lindsay has left her home for the courthouse.

PHOTOS: Lindsay Lohan Arrives To Court

Is Lindsay Lohan about to go back to jail? She'll find out soon enough.

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Lohan - who recently failed two court-ordered drug tests - is expected to show up to Los Angeles Superior Court in Beverly Hills, CA. around 8:30 a.m. Friday to face the same judge who let her out of rehab early and warned her he would send her back to jail if she didn't clean up her act.

It will actually be Lindsay's first time facing Judge Elden Fox, who was assigned to the case after the previous judge, Marsha Revel, stepped down from the case.

Shawn Chapman Holley is poised to make the legal equivalent of back-from-the-dead to represent Lindsay Lohan at court Tuesday, as she surrenders for a 90-day jail stint, according to those close to the troubled star.

Lohan sources tell RadarOnline.com Chapman Holley will be alongside the 24-year-old as she submits to a Beverly Hills judge to begin her 90-day sentence at a nearby jail.

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The legal eagle is yet to comment.

Lohan was spending her final night of freedom dealing with a game of lawyer swap, after Robert Shapiro, most well-known for being part of O.J. Simpson's defense team, informed the Judge Marsha Revel he was no longer representing her.

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But a source close to Lohan insisted, “Shawn never really left, Bob had been there guiding us... he was great, but he was just consulting, that’s all he ever was.”

Chapman Holley never signed the substitution of attorney form last Friday, a move that would have rid her of the case for good.

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Shapiro’s sudden and abrupt move, which coincided with Lohan checking out of the sober house he runs, prompted speculation that Lohan would attempt to appeal Judge Revel’s decision.

But the source, familiar with Lohan’s state of mind, insisted: “She’ll be there in court.”

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Lindsay’s in a really good place,” added the source. “We’re all in a really good place... but, you know she’s scared. It’s just a compete circus.”

The Deputy District Attorney who prosecuted Lohan, Danette Meyers, said she was unaware why Shapiro had quit the case or whether Chapman Holley would be in court when the actress surrenders.

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“My advice to the defendant, Ms. Lohan, is to show up tomorrow, on time,” Meyers told RadarOnline.com.

“If not, the People will be asking for a bench warrant, immediately."

The District Attorney whose prosecution sent Lindsay Lohan to jail has issued a warning to the troubled star and her legal team on the eve of her surrender to the court -- if you appeal, we’ll fight it.

Los Angeles County Deputy District Attorney, Danette Meyers, told RadarOnline.com she would object to any move to send Lohan to rehab, instead of the slammer.

VIDEO: Lindsay Lohan Sentenced To 90 Days In Jail

"I have two things to say about that, first, she had done an in-patient rehab program before -- and it didn't work,” said Meyers.

“Secondly, Judge Revel has already sentenced her. She needs to do the time. Jail is the only thing that is going to get her attention.”

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Lohan’s new attorney, Robert Shapiro, met Judge Marsha Revel in her chambers for a confidential meeting Monday, as Lohan began moving out of the sober house where she has been living for the past five days.

Meyers said she didn’t even know about the meeting because she was in another court, when a message was left for her.

PHOTOS: Lindsay Lohan Family Album

"If Mr. Shapiro wants to meet, he should have notified me,” she told RadarOnline.com.

“I never got any notice that there was a meeting scheduled in chambers, so I didn't appear. I was in court all afternoon and didn't get the message until I got back to my office around 4:30 p.m."

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Shapiro was at the courthouse for only a short period of time.

He has refused to comment about the meeting.

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Meyers admitted Lohan could stay out of jail if Shapiro filed an appeal on behalf of his client, but she warned: "I don't believe it will be fruitful and my office would file a response."

The Mean Girls star is scheduled to surrender tomorrow morning at 8:30am in Beverly Hills.

As Lindsay Lohan counts down the days to the start of her jail time, her father Michael Lohan is still determined to get her off prescription medication.

Read The Letter

And to prove his point, he’s fired off a stern letter to the court asking that her random drug testing include checking for prescription drugs, RadarOnline.com has confirmed exclusively.

VIDEO: Lindsay Lohan Sentenced To 90 Days In Jail

As RadarOnline.com reported, Lindsay’s probation report confirmed she has prescriptions for several powerful medications including Nexium (for acid reflux), Zoloft (antidepressant), Trazadone (antidepressant), Adderall (a stimulant used for attention deficit disorder) and Dilaudid (a painkiller).

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Michael’s letter to the court calls Lindsay’s prescription drug use “a giant legal loophole.” The letter explains that Lindsay continues to test positive for amphetamines and opiates but is not violating her probation because she has a doctor’s ‘OK’ to take those prescription medications.

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“The defendant was tested for drugs and alcohol on May 27, 2010, and the test was positive for amphetamines,” the letter reads. “This is not a violation of probation as the test result is positive because of the drug Adderall. The next two tests on June 2, 2010, and June 7, 2010, were positive for amphetamines and opiates. This is not a violation of probation, as these tests were positive for Adderall and the pain medication Dilaudid.”

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The letter continues, “Mr. Lohan does not believe his daughter has any medical reason to take any prescription drugs at all, much less regular use of amphetamines and opiates. She is in good health. Mr. Lohan therefore asks the court to disallow these prescription medications immediately, and to disallow them for the remainder of the term of her probation, including during any period of incarceration. Mr. Lohan also believes strongly that the doctors who are prescribing them should be investigated for unlawful over-prescribing of medication.”