Legal analysis: The purpose of taking blood in the detention center is to check whether the suspect has a history of drug abuse or is taking drugs. If there is such a situation, it needs to be handled separately. Collect blood samples, collect blood types and genes, and input them into the database. At the same time, compare blood samples to see if they are consistent with other suspected cases. In addition, the health examination is also to check whether the physical function of the suspect is normal. Detainees are detained in detention centers, and doctors conduct health checks and fill out health check lists.
Legal basis: Article 10 of the Regulations of People's Republic of China (PRC) Detention Center, prisoners detained in detention centers shall undergo health examination, and shall not be detained under any of the following circumstances: (1) those suffering from mental illness or acute infectious diseases; (two) suffering from other serious diseases, which may be life-threatening or unable to take care of themselves, but being detained; No detention for the most heinous crimes, except those that are dangerous to society; (3) Women who are pregnant or breast-feeding babies under one year old.