Chester County District Attorney Tom Hogan announced that the Pennsylvania State Police will receive a District Attorney’s Commendation and Commissioner’s Citation at 10:00 a.m. on Tuesday, August 25, 2015, at the Chester County Commissioner’s Meeting, 313 West Market Street, Sixth Floor, West Chester, Pennsylvania. The Commendation is for the investigation, arrest, and conviction of Warren Yerger. Yerger was convicted of abusing four children and sentenced to 339 to 690 years incarceration.