"The UCR and NVCS show similar trends regarding the races of offenders. Generally, the number of minorities identified as offenders is disproportionately high compared to their overall numbers in the population. As Ronald J Berger et al. advise the NCVS, 'Data are consistent with the UCR. The offenders in these types of crimes are disproportionately young, nonwhite, and male.'" (NVCS page 312, can be found by Google search-inside-the-book)
I would be interested to research the topic further. Could you provide more information about the studies you mentioned? I have not previously seen convincing evidence that bias in the justice system is responsible for the racial disparity in these crime statistics. From what I understand, a lot of the murders are black-on-black violence, as well. In 2013, 90% of blacks were murdered by blacks. A majority of people are killed by one of their own race in general (though black-on-white violence is much higher than white-on-black). People are typically murdered by someone who knew them intimately.
[Updated per correction]
Blacks killed by blacks: 90% [1]
Blacks killed by whites: 8%
Whites killed by whites: 82%
Whites killed by blacks: 15%
I find it plausible that there are effects along the lines of what you're saying, but I find it hard to believe that it would result in a murder per capita discrepancy of 10:1. It seems more plausible that that kind of bias would result in a discrepancy of much smaller proportions, especially for murder. I would be glad to review whatever evidence is available.
[1] https://www.fbi.gov/about-us/cjis/ucr/crime-in-the-u.s/2014/...
Blacks killed by blacks: 90%
Blacks killed by whites: 8%
Whites killed by whites: 82%
Whites killed by blacks: 15%
Ratio of whites killed by police to blacks killed by police: 1.857
[2] https://www.fbi.gov/about-us/cjis/ucr/crime-in-the-u.s/2014/...
"For here we are not afraid to follow truth wherever it may lead, nor to tolerate any error so long as reason is left free to combat it." (Thomas Jefferson)
One particularly damning statistic: black people pulled over and searched for drugs are significantly less likely to have drugs than white people.
http://www.nytimes.com/2015/10/25/us/racial-disparity-traffi...
This is a pretty good digest of the figures, but really read The New Jim Crow:
Prosecution figures are simply unreliable as a metric for judging how many crimes are committed by whites vs. blacks. There are many interesting cases that show this. The most interesting one is McCleskey v. Kemp. It's not my favorite in terms of the specifics of the case, but it is my favorite because in the intervening years it has become pretty clearly a bad ruling, to the point that the justice who wrote the majority opinion wishes he could reverse his own vote. The unfortunate thing being that he cannot, and his vote has made it effectively impossible to detect and address racial bias in prosecution.
https://en.wikipedia.org/wiki/McCleskey_v._Kemp