New Fairfax County Police Department chief speaks amid controversy over hiring process Fairfax County officials appointed Kevin Davis police chief after he served in several posts across the region. Now, some locals are concerned about his past. Author: John Henry Updated: 7:09 AM EDT May 7, 2021 FAIRFAX COUNTY, Va. — Fairfax County Police Chief Kevin Davis spoke to the community’s residents Thursday after some locals claimed the process used to recently hire him was not transparent. Davis started work as Fairfax County’s top cop on May 3. The Fairfax County Board of Supervisors appointed him to officially replace former Fairfax County Police Chief Edwin Roessler on April 23.