Granite City police say there's a reason that 20-percent of their traffic stops involve African-Americans even though only five percent of the city's residents are black.  Police chief Richard Miller says the number of African-Americans pulled over reflects the percentage of African-Americans driving the city's streets.  

He said Granite City is a center for shopping and employment and attracts drivers from surrounding communities, all of which have higher African-American populations.  The American Civil Liberties Union says any time the traffic stop rate is four times the population percentage is a situation law enforcement should look at.  

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