Lindsay Lohan Reportedly Terrified About Possible Return To Jail

TMZ broke the story ... authorities beg to differ and will prosecute her for lying to cops. Lindsay claimed she was a passenger, but witnesses say she was behind the wheel.

Lindsay is saying she's "terrified" of going back to jail, especially because Judge Stephanie Sautner made it clear she would violate her probation if she breaks the law again.

Lindsay says she will throw herself at the mercy of the court ... she believes "One car accident could ruin everything for me."