"Non-custodial code" improves work efficiency and helps to further reduce the rate of arrest and pre-trial detention. For example, the use of "non-custodial code" control, case handling and execution of the police through the cell phone can supervise dozens of people at the same time. For the procuratorial authorities, the emergence of "non-custodial code", so that the arrest of suspects without the need to punch the clock is always in the custody of the scope of protection of the criminal proceedings.

"Non-custodial code" is by the Hangzhou Municipal People's Procuratorate jointly with the Municipal Public Security Bureau to use digital empowerment *** with the research and development, known as a revolutionary change in the field of criminal procedure and "a new era of China's characteristics of the bail system".

According to the Provisions, the public prosecutors and law enforcement authorities use the "non-custodial code" as a carrier, and artificial intelligence, big data, blockchain, cloud computing and other technologies to ensure that the detainees can return to their daily lives under the necessary control through the multiple functions of going out reminder, violation of the early warning, timed punching card and irregular spot checks.