The Waupaca Police Department is under new leadership today. The city’s Police and Fire Commission late Tuesday named Detective-Sergeant Brian Hoelzel the interim police chief, effective immediately. The city is beginning the process of replacing Chief Tim Goke, who is retiring in early June. Hoelzel began his career with Waupaca P.D. in 1994 as a patrol officer, and was promoted to Detective-Sergeant in 2001. A tentative timeline has the Police and Fire Commission naming a permanent chief this fall.