Dyson called this a "false equivalency."
"Can I say this, first of all, no black people who commit crimes against other black people go to jail. Number two, they are not sworn by the police department as a agent of the state to uphold the law," he said. "So in both cases, that's a false equivalency that the mayor has drawn, which is exacerbated tensions that are deeply imbedded in American culture."
Later in the argument Giuliani argued that while police officers are only present in certain communities because black people are committing crimes.
"It is the reason for the heavy police presence in the black community," he said. "White police officers won't be there if you weren't killing each other 70 percent of the time."
Dyson shot back at Giuliani and said, "this is a defense mechanism of white supremacy at work in your mind."
Watch the clip via NBC:
H/t Washington Post