Assistant Police Chief Tom Zenner (left), and Assistant Chief Mike Rottier. (Metro Wire photos) Assistant Police Chief Tom Zenner (left), and Assistant Chief Mike Rottier. (Metro Wire photos) Report: Police chief subject to breathalyzer testing after return to duty March 29, 2020April 5, 2020 Keep community journalism going. Subscribe today for online annual or monthly access! Username Password Remember Me Forgot Password