Legal basis: Article 7 of the Measures for Punishment of Illegal Acts by Lawyers and Law Firms is under any of the following circumstances, which belongs to lawyer's illegal act of "representing both parties in the same case, or acting as an agent for legal affairs with conflicts of interest with himself and his close relatives as stipulated in Item 3 of Article 47 of the Lawyers Law: (1) Acting as an agent or providing relevant legal services for parties with conflicts of interest in the same civil litigation, administrative litigation or non-litigation legal affairs; (2) Acting as a defender or agent for the defendant and the victim in the same criminal case, or acting as a defender for two or more criminal suspects and defendants at the same time; (3) Providing legal services to the parties who have conflicts of interest with the consulting unit during their tenure as legal advisers; (3) Providing legal services to the parties who have conflicts of interest with the consulting unit during their tenure as legal advisers; (4) Lawyers who have served as judges and prosecutors act as agents and defenders to undertake cases handled by the original courts and procuratorates; (5) A lawyer who has served as an arbitrator or is still serving as an arbitrator, acting as an agent to undertake the cases handled by the arbitration institution where he previously served or currently serves.