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Lindsay Lohan, Jewelry Thief?

It's reported that Lindsay Lohan could be in trouble with the law - again -- and this time, the allegations are more serious than ever.

Lohan is said to be under investigation in the theft of jewelry - possibly a single piece valued at $5,000, which would make the alleged crime a felony.

"Law enforcement sources tell Radar Online that Lindsay is suspected to have stolen a high-end piece of jewelry, most likely a necklace," Dylan Howard Sr., executive editor of the celebrity gossip website tells CBS News.

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And -- police reportedly have store surveillance video to support their claim.

"As we understand it," Howard says, "police have in their possession video they believe forms a very powerful piece of evidence in this case -- video that shows Lindsay Lohan wearing the necklace in question."

The Los Angeles Police Department has requested a search warrant for Lohan's new home in Venice Beach, Calif., according to the reports.

The Los Angeles Times says that, once detectives began preparing that warrant, a Lohan associate turned the necklace over to them.

The 24-year-old is still on probation, and has been warned she could be sentenced to six months jail time for any violation.

Exactly one month ago today, Lohan checked out of the Betty Ford Center after 90 days in court-ordered rehab.

Even at the clinic, her alleged behavior threatened to land her back in jail: An employee, Dawn Holland, claimed Lohan shoved her during an argument.

At the moment, Lohan's next scheduled court date is Feb. 25.