article 12 of the measures for the administration of lawyers' service charges prohibits the implementation of risk agency fees in criminal litigation cases, administrative litigation cases, state compensation cases and group litigation cases. Thirteenth risk agency fees, the law firm shall sign a risk agency fee contract with the client, and stipulate the risk responsibility, charging method, charging amount or proportion that both parties should bear. The maximum risk agency fee shall not be higher than 3% of the target amount agreed in the charging contract.