STUDIES:   

678/

“Stops of blacks and Hispanics were typically based on less evidence than stops of whites. For example, 49% of blacks and 34% of Hispanics stopped under suspicion of [criminal weapon possession] had less than a 1% chance of possessing a weapon, compared to 19% of whites."

Combatting Police Discrimination in the Age of Big Data Combatting Police Discrimination in the Age of Big Data Distribution of the ex ante probability of finding a weapon on a suspect stopped for suspicion of criminal possession of a weapon Distribution of the ex ante probability of finding a weapon on a suspect stopped for suspicion of criminal possession of a weapon
Combatting Police Discrimination in the Age of Big Data
New Criminal Law Review
Goel, Sharad / Perelman, Maya / Shroff, Ravi / Sklansky, David Alan
Vol. 20 Issue 2, pp. 181–232, 2017
10.1525/nclr.2017.20.2.181
Thoughts?
Comment on this study on its Twitter thread.