Legal analysis: the charging standard of criminal lawyers must be determined according to the stage of handling cases. Each piece is charged 5000- 10000 yuan in the investigation stage, 5000- 10000 yuan in the examination and prosecution stage, and 1000-30000 yuan in the first trial stage. In the process of handling the case, the client shall also bear the appraisal fee, information inquiry fee, copying fee and other expenses to the handling unit. Article 3 of the Measures for the Administration of Lawyers' Service Fees: Lawyers' service fees shall follow the principles of openness, fairness, voluntary compensation, honesty and credibility. Law firms should facilitate the people, strengthen internal management, reduce service costs, and provide convenient and high-quality legal services for clients.
Legal basis: Article 25 of the Lawyers Law of People's Republic of China (PRC), when a lawyer undertakes business, the law firm shall uniformly accept the entrustment, sign a written entrustment contract with the client, uniformly collect fees according to the provisions of the state, and record them truthfully. Law firms and lawyers shall pay taxes according to law.