I'm undergoing a background investigation for a new job so I'm just going to highlight some empirical studies:
African-Americans receive longer sentences on average than whites for the same crimes. https://repository.law.umich.edu/cgi/viewcontent.cgi?article=2413&context=articles
African-Americans and Hispanics are more than twice as likely to experience use of force applied against them by police than other ethnic groups.
African-Americans in particular are 21% more likely to have a weapon drawn on them than whites.
https://law.yale.edu/sites/default/files/area/workshop/leo/leo16_fryer.pdf
African-Americans in particular are 21% more likely to have a weapon drawn on them than whites.
https://law.yale.edu/sites/default/files/area/workshop/leo/leo16_fryer.pdf
Among all ethnic groups, African-American men statistically have the highest risk of being killed by the police, about 1 in 1000, and it's one of the leading causes of death for the group. https://www.pnas.org/content/116/34/16793
African-Americans killed by police were more likely to be unarmed than whites. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6080222/
Data support what many black communities didn't need a study to know - that systemic injustice and prejudices continue to exist in the criminal justice system and among law enforcement.
And how the police interacts with communities, peaceably or combatively, powerfully affects public health and structural inequality. https://ajph.aphapublications.org/doi/abs/10.2105/AJPH.2017.303691
There are evidence-based ways to improve policing. Among them, studies show escalating force is often counter-productive. https://fivethirtyeight.com/features/de-escalation-keeps-protesters-and-police-safer-heres-why-departments-respond-with-force-anyway/