KARACHI: A judicial magistrate on Saturday granted bail to a serving police officer’s son, who was arrested in Karachi’s Defence Housing Authority (DHA) following a heated argument with officials for having a police number plate on a private luxury vehicle. A video of the man, identified as the son of a senior superintendent of police (SSP), arguing with policemen had gone viral on social media. He was released from custody late on Friday night on personal surety, police sources said.