IMPLICIT BIAS AMONG POLICE within the PATRIARCHAL WHITE SUPREMACY SYSTEM
"We all have implicit biases whereby we link groups to stereotypes, possibly producing discriminatory behaviour - even in individuals who are totally against prejudice."
... A Department of Justice report released in March looking at the use of deadly force by Philadelphia police, supports the idea that police are susceptible to implicit bias:
"One of the things they looked at is what they called threat perception failure. The officer believed that the person was armed and it turned out not to be the case. And these failures were more likely to occur when the subject was black [even if the officers were themselves black or Latino].