Johnson City Police Chief Billy Church Has Announced The Promotion Of Mark Hollis To Captain After Nearly 23 Years Of Service. Hollis, Who Most Recently Led The Community Policing Unit, Will Now Oversee Platoon 1. He Has Served In Various Roles Including Narcotics Investigator And Swat Team Member. Hollis Expressed Gratitude For The Trust Placed In Him And Looks Forward To His New Responsibilities. Chief Church Praised Hollis For His Dedication And Community-Focused Leadership.