Was the arrest of harvard professor Henry Lewis Gates racist?

Henry Lewis Gates is a professor at Harvard university. He was coming home from a flight and he couldn't get in his door. A White woman called the police said that someone was breaking into his house. After the situation, Henry was later arrested when he asked for the officers badge number. After watching this clip do you believe his arrest was racist? Also what measure could the cop have taken to be more reasonable or understandable?