Charge standard for criminal defense: 1, investigation stage (public security): 5000-8000 yuan/piece; Review and prosecution stage (procuratorate): 6000- 10000 yuan/piece; Trial stage (court): 8,000-25,000 yuan/piece; 2 for major, difficult and complicated cases, the law firm shall negotiate with the client to determine the charging standard within the range of not more than 5 times the upper limit of the standard.