Police have summoned Selangor Menteri Besar Azmin Ali's teenage son to give a statement over his attendance at the Bersih 4 rally in August. The MB, who is also PKR deputy president, attended the Kuala Lumpur rally with his family. "Police instructed my son to present himself to the Dang Wangi district headquarters at 10am tomorrow, even though he has to sit his final examinations. "This oppression of a 15-year-old boy will only prompt him to rise against Umno's misdeeds. "I am grateful that my son Basheer is a brave boy," he said on Twitter. He later told Bernama that his son will be sitting his examinations and will give a statement to police at a later date. Azmin is under investigation for bringing a child to a demonstration, under the Peaceful Assembly Act. Bersih 4 organisers Maria Chin Abdullah and Jannie Lasimbang have been charged under the same Act for not giving due notice to police. The Aug 29 and 30 Bersih 4 rally in Kuala Lumpur was attended by more than 150,000 people. Among others, it was to call for the resignation of the Prime Minister Najib Abdul Razak amid corruption allegations. Najib denies any wrongdoing