Bishop Airport Police Chief Christopher Miller retiring after 20 years on the job Updated Dec 17, 2020; Posted Dec 17, 2020 Bishop Airport Police Chief Christopher Miller answers questions from the media after the sentencing of Amor Ftouhi, Thursday, April 18, 2019 in front of the U.S. District Court in downtown Flint. Ftouhi was sentenced to a life sentence for stabbing Bishop Airport Lt. Jeff Neville in June 21, 2017. Facebook Share FLINT, MI -- Twenty years after becoming the top cop at Bishop Airport, Chief Christopher Miller is stepping down from the post. Miller, a former sergeant for the Genesee County Sheriff’s Department and Flint Northwestern graduate, told members of the Bishop Airport Authority Board of Directors that he will retire effective Jan. 23, during their meeting on Wednesday, Dec. 16.