Really? Any evidence to back that up?
[1] www.amazon.com/New-Jim-Crow-Incarceration-Colorblindness/dp/1595586431/
Also to be intellectually honest in the subject, one can't use media coverage as a proxy for actual data. Lots of anecdotes doesn't necessarily provide evidence. There are thousands of arrests daily. I haven't seen thousands of news stories -- generally only when there was an angle that would elicit ratings. A white man getting shot by the cops doesn't generally make national headlines just like the over 2000 shootings of (mostly) black victims in Chicago barely warrants mention.
My point isn't to argue if cops are racist. My point is that knee-jerk claims of racism ought to be quantifiable.
Of course, 100% innocent until proven guilty; I'm not saying we should convict/target people without merit based purely off of race/age/obesity/hair color.
EDIT: Like any mutual fund manager will tell you, "past performance is not a guarantee of future results." Police policy is barking up the wrong tree if they think that blackness/race are the variables to watch, much like anyone would be amiss if they solely looked at TTM rate of return for an investment option, and that is to say nothing of the positive feedback loop that racial profiling creates. Poverty, education levels, and the availability of social mobility are the variables that should be watched to create sane public policy in the USA.
Of course, the entire discussion we're having is invalid if we work with the premise that more policing = more convictions, by virtue of the crime being everywhere (across boundaries in whatever criteria you wish, e.g. race) regardless, and convictions being a simple byproduct of policing and not of said underlying factor like race, obesity, education, socioeconomic status, or hair-color.