As for the police department memo, sounds to me like the issue wasn't so much whether cops are/should be in shape as it was an indication that the chief had a poor management style. If department morale was poor to begin with, then a "by the way, you're fat" memo was bound to make matters worse. It may be a good idea for police officers to be in good physical shape, but it's not a good idea to have a police department that's angry and discouraged.
CatsinDenver is correct. I think this goes WAY beyond the department members' physical condition. As always there are two sides to every story. I would LOVE to hear what the cops have to say before I judge whether or not I think the Chief should've been fired. The memo itself could've been the Chief's way of using his sense of humor (however dry it may have been) to make a point.