No, DiQuan Dill should be apologizing to the Police and the Mayors office for letting their Dog bite that officer. They should probably be charged with assault on a police officer.
No seriously the training standards and supervision of the officers is at fault. Yes it happens way to often, usually related to War on Drugs.
You are being too kind on this one. I bet the training did not include tresspassing on private property and other crimes. These officers certainly should be prosecuted for these actions.