By CBS3 Staff

NEW CASTLE COUNTY, Del. (CBS) — A former police officer has pleaded guilty to offensive touching after surveillance video showed him dragging a suspect inside New Castle County Police headquarters.

Video from last August shows Michael Carnevale dragging a 16-year-old girl by her arm to a holding cell after she went to the ground.

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A second video then shows Carnevale taking the now-handcuffed teenager out of that cell. Again, she falls to the ground and Carnevale drags her down the hallway.

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Carnevale retired last October while authorities were conducting the investigation.

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He can never seek another law enforcement position.