(CNN) A former North Carolina school resource officer seen on video body slamming an 11-year-old boy will face misdemeanor assault and child abuse charges, District Attorney Mike Waters said Tuesday.

The announcement came a day after the State Bureau of Investigation finished its probe into the incident. While the family wanted Warren Durham to face stiffer felony charges, Waters said state law left him no choice but to pursue misdemeanor charges against the ex-officer.

"Despite the violent nature of this assault depicted in the video, the student did not suffer any fractured or broken bones, or sustain any injuries that could be defined under North Carolina law as serious bodily injury," which are a prerequisite for filing felony charges, the district attorney said during a news conference.

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Investigators are seeking an arrest warrant for Durham on counts of assault on a child younger than 12, child abuse and willful failure to discharge duties, Waters said. He would not say whether Durham had been arrested.

"As a part of this investigation, we will be seeking to make sure that Mr. Durham does not ever serve as a law enforcement officer again here," he said.

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