According to Life and Style Magazine this past Grammy weekend is not the first time the police have been called on Chris Brown. In 2007 at a Miami hotel, police where called to his room. 

At an unnamed hotel in Miami in 2007, police were called to Chris’ hotel room where the singer had been “screaming and throwing dishes.”He was fighting with his mom. Neighboring hotel guests alerted security and they came upstairs to the room, saw the broken dishes and the mess, and then asked his mother to leave the room. Police were then called, but charges were not filed as Chris simply paid the hotel bill and left the hotel.”