WHO: Even without a law, high-level detentions happen. Nobel Peace Prize winner Liu Xiaobo was held in a secret location for six months before being formally arrested. More recently, prominent artist Ai Weiwei was detained secretly for three months.
HOW IT WOULD WORK: Police could detain suspects on “house arrest” outside their homes to safeguard investigations of state security, terror and corruption. They would just need to get permission from a higher-level security agency or prosecutor.