The paper points out that in Ferguson, 86 percent of vehicle stops “involved a black motorist, although blacks make up just 67 percent of the population.”
In addition, blacks stopped in Ferguson “are almost twice as likely as whites to be searched (12.1 percent versus 6.9 percent) and twice as likely to be arrested (10.4 percent versus 5.2 percent)”.
Searches of blacks only results in discovery of contraband 21.7 percent of the time, whereas contraband is recovered from their less frequently stopped white counterparts 34.0 percent of the time.
http://www.newsweek.com/ferguson-profiling-police-courts-shooting-264744
Ferguson's municipal revenue is heavily based on draining money from the blacks with trivial, frivolous citations, fines, etc.