Could mean if anyone would appreciate the importance of the 2nd Amendment it would be a black, considering the history of gun control laws being used to disarm blacks, thus it is more surprising a black officer would participate in this action. I doubt the author would be suggesting that this black officer is too uppity thinking she can disarm white men. Then again you never know. Myself, I would resent being unlawfully disarmed by anyone regardless of race creed color sex (not gender).
Gee, I hope you didn't hurt yourself reaching for that one.