Detroit Mayor Dave Bing, right, congratulates new Police Chief Warren Evans in Detroit on Monday, July 6, 2009. Evans will replace James Barren, who was fired Friday. Barren was brought out of retirement and appointed chief in September by then-Mayor Ken Cockrel Jr. after Ella Bully-Cummings retired. AP Photo logo AP Photo 4 months ago

Detroit Mayor Dave Bing, right, congratulates new Police Chief Warren Evans in Detroit on Monday, July 6, 2009. Evans will replace James Barren, who was fired Friday. Barren was brought out of retirement and appointed chief in September by then-Mayor Ken Cockrel Jr. after Ella Bully-Cummings retired.