The issue of face recognition algorithms performing worse on dark faces is a major problem. But the other side of it is: would police be more hesitant to act on such fuzzy evidence if the top match appeared to be a middle-class Caucasian (i.e. someone who is more likely to take legal recourse)?
Honest question: does race predict legal recourse when decoupled from socioeconomic status, or is this an assumption?
So unequal treatment based on race has quite literally been a feature of the US justice system, independent of socioeconomic status.