According to the "Regulations of the People's Procuratorate on the Administration of Procuratorial Uniforms".
Article 3 A public prosecutor shall wear a procuratorial uniform and a procuratorial badge when engaging in the following work:
(1) Appearing in court;
(2) Conducting on-the-spot investigation of criminal cases;
(three) to carry out procuratorial work in the supervision place and supervise the execution of the death penalty on the spot;
(4) Receiving visitors;
(5) Interviewing with news media;
(six) other official activities that need to be dressed.