LOS ANGELES: Chris Brown could still face charges over his brawl with Frank Ocean.  The Fine China star was involved in a fight with the R&B star over a parking space outside an LA recording studio, in January. Frank refused to press charges and it was thought the case would be dropped. But a US website has learned that police are still investigating Chris for criminal battery.  TMZ reports that the District Attorney’s office has an active file and has yet to decide whether to prosecute Brown for battery. Chris was due in court on Monday for a probation hearing, following his assault on ex-girlfriend Rihanna, back in 2009.–EN