Levin says he considers the department's actions an assault on the First Amendment. He says TMZ has met with lawyers and is "charting our course of action."
An after-hours call to a sheriff's department spokesman was not answered.
Records obtained by investigators showed several calls between Levin and the home of Deputy James Mee, who arrested Gibson. Prosecutors declined to charge Mee, citing a lack of proof he leaked details about the case.
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