Video surveillance footage of crimes committed on the Bay Area Rapid Transit (BART) service by minority youths is being withheld by San Francisco authorities due to their concern that the videos might perpetuate racial bias and stereotyping.
In three months time, at least three robberies have transpired at the San Francisco station by groups of teenagers. One such attack, on April 22, was committed by some 40-60 teens, reportsKPXI-TV.
“I think people are genuinely concerned — they are fearful about the stories that have come out about the recent attacks, the assaults, the thefts,” explained a member of the BART board of directors, Debora Allen.
Yet, authorities are refusing to release footage of the crimes.

So, when Allen pressed for the rationale behind withholding the important evidence from the public, she was eventually told the release of the videos “would create a racial bias in the riders against minorities on the trains.”
San Fran Transit: We Refuse To Release Crime Surveillance Videos Because It Will Make People Racist | Daily Wire