Extend the detention period and let lawyers participate in criminal proceedings. According to the inquiry, China Travel Service. Com official website shows. 1. The application for extension of detention period is a document used to approve the extension of detention period. If the people's procuratorate fails to complete the self-investigation case within the statutory time limit, it needs to apply to the procuratorate at a higher level or submit it to the procuratorate at or above the provincial level or the Standing Committee of the National People's Congress for review.
2. The Ministry of Justice has formulated the document format used by lawyers in criminal proceedings, and the application documents for lawyers to participate in criminal proceedings are used as supporting provisions for the implementation of the Criminal Procedure Law and the Lawyers Law.