D.A.: Promotions make ‘strong leadership team even stronger’ Four Chester County assistant district attorneys have been promoted to deputy district attorneys, Chester County District Attorney Tom Hogan announced Friday. Hogan said the new deputies – Michelle Frei, Thomas Ost-Prisco, Renée Merion, and Mark Conte – all have distinct areas of expertise, demonstrated dedication, and solid … Continue reading 4 prosecutors elevated to deputy district attorneys