The new mayor of Creston, who fired the former police chief last week, has named a new one. Mayor Mike Tamerius announced today that sergeant Tom Hartsock has been appointed interim chief. Hartsock joined the Creston police department in 1990 and is working as a narcotics officer, in a federally-funded multi-department drug task force. Hartsock says he will not seek permanent appointment. Creston’s been without a police chief since January 5, when Mayor Tamerius decided not to reappoint Bill Heatherington to the post. Then last Thursday, Heatherington returned to the force as a captain. The city’s taking applications for a permanent chief.