He came to spotlight during the 2014 Occupy protests when he was beaten by seven Hong Kong Police officers in Tamar Park, Admiralty, after being arrested in a police clearance operation after he poured foul-smelling liquid over eleven officers on 15 October 2014. He was noted with extensive injuries including swelling and bruising of the forehead, upper face, and chin; bruising of the neck; bruising of the clavicle; circular reddish bruises all over the chest; bruising of both sides of the abdomen; bruising of the back; bruising of the left wrist; abrasions and bruising of the left arm and hand; and abrasion of the left knee. Doctors testified that the distinctive circular bruises were likely caused by forceful jabbing of retracted police batons.