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by Diane Mastrull Published Aug. 2, 2025, 5:56 p.m. ET

A Delaware County police officer has been arrested on charges he took inappropriate photos and videos of at least two teenage girls at a YMCA in Chester County last month.

But investigators searching the phone of Mark Mackrell, a part-time officer at the Millbourne Borough Police Department, found photos and videos of juveniles dating back to July 2024, according to a joint statement by the Chester County District Attorney’s Office and the Westtown-East Goshen Police Department.

Mackrell, 52, of Coatesville, was arrested Thursday after the mother of a 14-year-old girl told Westtown-East Goshen police on July 23 that her daughter and her 13-year-old friend though

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