There is only ONE road back to a respected police force.

[Kablooie]

43. "Why It's Impossible to Indict a Cop"

Chapter 563 of the Missouri Revised Statutes grants a lot of discretion to officers of the law to wield deadly force, to the horror of many observers swooping in to the Ferguson story. The statute authorizes deadly force “in effecting an arrest or in preventing an escape from custody” if the officer “reasonably believes” it is necessary in order to “to effect the arrest and also reasonably believes that the person to be arrested has committed or attempted to commit a felony…or may otherwise endanger life or inflict serious physical injury unless arrested without delay.”

But this law is not an outlier, and is fully in sync with Supreme Court jurisprudence. The legal standard authorizing deadly force is something called “objective reasonableness.”

“Objectively reasonable”—what could be wrong with that? But in actual courtroom practice, “objective reasonableness” has become nearly impossible to tell apart from the subjective snap judgments of panic-fueled police officers. American courts universally defer to the law enforcement officer’s own personal assessment of the threat at the time.

Lot's more here:

http://www.thenation.com/article/190937/why-its-impossible-indict-cop