Two police officers were injured and 13 people were arrested in the clashes, which involved about 150 of the thousands of mostly peaceful anti-racism demonstrators. The skirmishes marked the latest in a string of protests around the alleged rape that have degenerated into violence.
Police had installed a security perimeter around Paris' Place de la Republique for the rally. Far-right presidential candidate Marine Le Pen, meanwhile, urged the government to ban the protest out of respect for police.
One officer has been charged with rape in the case, and three others with aggravated assault. All deny intentional wrongdoing.
Former French national soccer star Lillian Thuram was among the Paris marchers today calling for justice.
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"Living in the public space is not the same, depending on the color of your skin," he said. "We're in 2017. This is a real shame."
After an apparent video of the attack circulated online, angry youth torched cars and clashed with police for several days in suburbs around Paris. The violence was reminiscent of riots in 2005 that exposed France's long-running problems between youths in public housing projects with high immigrant populations and police.
Demonstrator Hamid Djudi, 57, expressed frustration today that successive French governments have failed to prevent abuse and discrimination.
"In the 1980s, we were protesting racism ... I was 20 years old in the '80s. I used to face (police) controls four times a day," he said. "History repeats itself. My own children are facing the same troubles."
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