Witty and Sarcastic: Flack uses sarcasm frequently, both in his dealings with suspects and to lighten the mood with his colleagues.
Tough and Intimidating: He is willing to play the "bad cop" during interrogations, sometimes yelling or using aggressive physical gestures to intimidate suspects, though he does not physically assault them.
Street Smart: He relies heavily on his street smarts and instincts, which he has honed from his Queens background, rather than a high level of academic knowledge