The night after the Yang Jia case occurred, his mother Wang Jingmei was first taken to the Datun Police Station in Chaoyang District, and was then sent by Shanghai and Beijing police to the Ankang Psychiatric Hospital of the Beijing Public Security Bureau in Shunyi District and forcibly detained. Her family only learned of her whereabouts four months later, and legal professionals pointed out that there was no regulatory basis whatsoever for sending her to a psychiatric hospital.