A policeman in the southern Chinese city of Shenzhen has been accused of misconduct after a video of him choking a woman with his knees surfaced online. According to media reports , on December 9 a 23-year-old Chinese woman surnamed Cheng published a post on Weibo documenting how a policeman had abused her. Cheng explained that on December 8 she had an altercation with a security guard inside a building and had called the police. When the police arrived she asked to see the CCTV footage of the incident, but the policeman refused and threatened her with a stun gun. When she refused to leave the room, he allegedly threw her to the ground. "[The policeman] pulled my hair, forcefully threw me on the bench, and trapped my head and throat with his knees," she wrote in the post. "I immediately felt like I was choking." A video uploaded on Weibo and later on Youtube shows the policeman pinning Cheng down with his knees. Another woman tries to hel