Prosecutors. Probation Officer...Could Jail Be Next in Lindsay Lohan's Necklace Nightmare?

Actress latest troubles involving a necklace stolen from a jewelry store in Venice is still being investigated by the LAPD

Jeez, we haven't seen a necklace cause this much trouble since Titanic.

But some allegedly purloined bling is creating headaches for Lindsay Lohan, as her probation officer and the Los Angeles district attorney are the latest to enter the fray as she faces a grand theft investigation involving the golden trinket (see photo).

Lohan put in face time with her probation officer in Santa Monica earlier today. By the end of the afternoon, the LAPD tells E! News that investigators expect to turn over their case to the D.A.'s office, which will ultimately decide whether there's enough evidence to press charges.

In other words, Lindsay's sweating right about now.

Lohan's is accused of swiping the $2,500 necklace from a jewelry store near her home in Venice last month.

A search warrant had been obtained by police on Tuesday to search Lohan's Venice pad, but officers never actually executed it—before they could knock on Lohan's door, the necklace was magically turned over to police by someone other than Lohan. It's not clear if it was a Lohan associate who returned the jewelry.

But Lohan's not off the hook just yet. The owner of the store, Kamofie & Company, claims to have pictures and video of Lohan wearing the so-called "one-of-a-kind" necklace on Jan. 22, including the photo accompanying this story.

Should there be enough evidence to prosecute, Lohan could be in deep doo-doo.

There was no immediate comment from her attorney, Shawn Chapman Holley.

The actress, still under investigation for the alleged assault on an employee at the Betty Ford Clinic during her recent rehab stint, could wind up back behind bars.

Lohan, 24, has a previously scheduled probation hearing on Feb. 25. L.A. Superior Court Judge Elden S. Fox had threatened to send her back behind bars if she violated the terms of her probation, which requires her to obey all laws and submit to frequent drug tests.

So far so good on the drug tests. As for breaking the law, well her fate will soon be in the D.A.'s hand.

Like we said, time to start sweating.

UPDATE 2:15 p.m. PT: Los Angeles District Attorney spokeswoman Sandi Gibbons tells E! News that the D.A. has received the case from the LAPD. "We are reviewing it," Gibbons said. "We are not going to make any decision today."