Court records show Zimmerman was issued a summons for a May 30 arraignment on a charge of misdemeanour stalking.
A sheriff’s report says the investigator contacted Zimmerman in September on behalf of Michael Gasparro, who is making a documentary on Trayvon Martin. The series is being produced by rapper Jay-Z.
Court records show the private investigator received 55 phone calls, 67 text messages, 36 voicemails and 27 emails from Zimmerman in December.
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The records don’t list an attorney for Zimmerman.
Zimmerman identifies himself as Hispanic. The former neighbourhood watch volunteer fatally shot the 17-year-old Martin in 2012 in the central Florida city of Sanford. He was acquitted of all charges.