HEY, MAN,” says the officer sauntering up to your car. The nonchalant greeting might seem insignificant—but it’s not. If you’re white, that cop is statistically more likely to lead with “Hello, sir.” Jennifer Eberhardt, a social psychologist at Stanford University, heads a team of computational linguists, engineers, and computer scientists that is developing speech- recognition and transcript-analysis software for policing. Using machine intelligence, the system scans transcripts from body-camera footage to recognize patterns of racial disparity. Eberhardt refined her computational tools over a twoyear study of the Oakland Police Department, scrutinizing more than 36,000 statements from traffic stops. The resulting data found that officers were more likely to ask questions of black drivers, less likely to state a reason for pulling them over, and less likely to use respectful language.…
