Detroit Police Chief Warren Evans, standing in front of Mayor Dave Bing, left, addresses the media in the mayor's office 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 5 months ago

Detroit Police Chief Warren Evans, standing in front of Mayor Dave Bing, left, addresses the media in the mayor's office 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.