STUDIES:   

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“SDO [Social Dominance Orientation] tends to be higher in police officers compared to members of the general public.” & “Police/civilian contact with an enforcement mindset may also produce the kind of normative ambiguity that promotes racially disparate treatment."

The Psychological Science of Racial Bias and Policing The Psychological Science of Racial Bias and Policing Map of policing risk factors to psychological routs to discrimination Map of policing risk factors to psychological routs to discrimination
The Psychological Science of Racial Bias and Policing.
Psychology, Public Policy, and Law
Swencionis, Jillian K. / Goff, Phillip Atiba
Vol. 23 Issue 4, pp. 398–409, 2017
10.1037/law0000130
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