Why not let lawyers meet in criminal detention?

According to the provisions of China's criminal procedure law, the period of criminal detention is the time when the public security department is collecting evidence and investigating cases, and it is also the time when the public security department has not decided whether to prosecute. The public security department transfers the case to the procuratorial department, and the procuratorial department brings a public prosecution to the court. Only after the court files a case can the lawyer intervene.