K.S.A. 14-205

All officers elected or appointed shall be qualified electors of said city, except that the city may appoint nonresidents as city attorney, municipal judge and as law enforcement officers when deemed necessary, including the appointment of nonresidents who also serve as city attorney, municipal judge or law enforcement officers of another municipality or public agency: Provided, That nothing herein shall authorize the appointment of nonresidents of this state. The city attorney shall be a qualified elector of the county in which said city is located or of an adjoining county. The removal from such city of any officer required to be a qualified elector shall occasion a vacancy in such office. The clerk shall enter every appointment to office, and the date thereof, on the journal of proceedings. The council may require all city officers, elected or appointed, to take and subscribe an oath and give bonds and security for the faithful performances of their duties.