STUDIES:
850/
“It appears as though the infusion of Latino and African-American officers into the tradi- tional policing culture served to ‘unfreeze’ and change many of the pre-existing, less community-oriented attitudes held by non-minority officers."

Assessing the Long-Term Effects of Officer Race on Police Attitudes Towards the Community: A Case for Representative Bureaucracy Theory
Police Practice and Research
Vol. 12 Issue 6, pp. 474–491,
2011
Comment on this study on its Twitter thread.