Lindsay Lohan's assistant quit just hours before arrest

According to police, Lindsay Lohan's assistant quit just hours before Lohan was arrested for DUI, and when the assistant's mother came to pick her up, Lindsay gave chase. We're told the assistant's mother called the police, warning them that Lindsay was hot on their tail, and that she was headed for the nearest police station.

On Tuesday gossips claimed that it was Lindsay's longtime assistant, Jenni Muro, who was involved in the late-night chase and arrest, TMZ debunked the gossip, reporting that Jenni was NOT involved in the incident, and furthermore, she was not even present at the time of Lindsay's arrest.

TMZ has learned that Lohan's arraignment is set for August 24 at 8:30 AM.

Lohan is scheduled to appear in Beverly Hills Court the same day for her Memorial Day weekend DUI bust.

The maximum sentence she faced for that original DUI and hit and run charges was 6 months for each. With Lindsay's new DUI charges she could face up to one year in jail. Lohan was also charged with possession of cocaine, which is a felony and carries a maximum of three years in jail.

Lohan is accused of driving on a suspended license as well, which carries a maximum of one year in jail.