蜜芽传媒

President Obama has expressed his deep concern over the latest fatal shooting of a black man by US police in controversial circumstances. But given how frequently there are fatal police shootings - what sort of firearms training is standard? Retired Detective Inspector Mike Conti served decades in law enforcement and founded The Firearms Training Unit at the Massachusetts State Police.

(Picture: A new class of US police officers in a swearing-in ceremony. Credit: Spencer Platt/Getty Images)