A 49-year-old police sergeant from Ocean County pleaded guilty Thursday to theft charges for keeping a donated vehicle for personal use for more than a year, prosecutors said.

Sean Marti, 49, of Stafford Township, learned that a resident wanted to donate a Polaris ATV to the Harvey Cedars Police Department in the summer of 2017.

Marti, a sergeant with Harvey Cedars at the time, accepted the ATV and stored it at his home for personal use until December 2018, when prosecutors learned of it.

Marti pleaded guilty to theft of movable property Thursday, and is no longer on the Harvey Cedars Police force.

As a condition of his plea agreement, Marti was barred from any future employment for the State of New Jersey.

Recent employer data shows he had been with the department for 23 years at the time of his termination and he was making about $128,000.

Marti’s scheduled to be sentenced in June.

Paige Gross may be reached at pgross@njadvancemedia.com. Follow her on Twitter @By_paigegross.

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