Section 504 - Appointment and removal of commissioner of jurors(a) Except in counties within cities having a population of one million or more, the county jury board, or a majority thereof, shall appoint a commissioner of jurors for a term of four years and shall fill any vacancy occurring in such office in the same manner as an original appointment. The county jury board may, in its discretion, appoint the county clerk or other county officer or employee to serve as commissioner of jurors. A county clerk's term of office as commissioner shall be coterminus with his term of office as county clerk.(b) The commissioner shall be removable for cause by the appellate division of the supreme court in the judicial department embracing the county, upon written charges and opportunity to be heard after due notice thereof. If such commissioner is the county clerk, the appellate division may remove him from the office of commissioner in the same manner.