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.
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,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.