I think I have stumbled upon the answer to US police committing unjustifiable homicides: have the FBI train them:
The F.B.I. Deemed Agents Faultless in 150 Shootings
After contradictory stories emerged about an F.B.I. agent’s killing last month of a Chechen man in Orlando, Fla., who was being questioned over ties to the Boston Marathon bombing suspects, the bureau reassured the public that it would clear up the murky episode.
“The F.B.I. takes very seriously any shooting incidents involving our agents, and as such we have an effective, time-tested process for addressing them internally,” a bureau spokesman said.
But if such internal investigations are time-tested, their outcomes are also predictable: from 1993 to early 2011, F.B.I. agents fatally shot about 70 “subjects” and wounded about 80 others — and every one of those episodes was deemed justified, according to interviews and internal F.B.I. records obtained by The New York Times through a Freedom of Information Act lawsuit.
The last two years have followed the same pattern: an F.B.I. spokesman said that since 2011, there had been no findings of improper intentional shootings.
Considering its spotless record, I can only conclude that the FBI’s much higher standard of training is responsible for its agents incredible inability to avoid ever making a mistake when shooting citizens. I therefore recommend that its budget be enlarged sufficiently to permit all US state and local police to undergo rigorous FBI training.
This would not only save American lives and increase police professionalism, but also reduce the level of outrage in America evinced by Black Lives Matter and other groups of concerned citizens.