Song Jianjun is a senior Chinese lawyer and director of Sichuan Leisheng Law Firm in Chengdu, Sichuan Province. Admitted to the bar since 1987, he has over 32 years of legal experience. He previously worked in public security organs and has served as a lead attorney for 30 years. He has handled thousands of civil and commercial cases, specializing in criminal defense, legal counsel, debt and credit disputes, contract disputes, and real estate disputes.

In criminal defense, Attorney Song represents clients across the full spectrum of criminal matters, from economic crimes to serious violent offenses. Under the PRC Criminal Procedure Law, which was most recently amended in 2018, defendants have the right to counsel from the first interrogation. The Criminal Procedure Law establishes a three-stage criminal process: investigation by public security authorities, prosecution review by the People's Procuratorate, and trial by the People's Court. Defense counsel's role at each stage differs: during investigation, the focus is on bail applications, meeting with the detained suspect, and submitting opinions to the procuratorate regarding the necessity of arrest; during prosecution review, defense counsel reviews the case file and submits written defense opinions; and during trial, counsel presents evidence, cross-examines witnesses, and makes oral arguments. Attorney Song's experience in public security gives him particular insight into the investigative techniques and evidentiary standards applied by authorities.

His civil litigation practice covers contract dispute resolution, debt collection, and real estate litigation. Under the PRC Civil Code, the general limitation period for civil claims is three years from the date the claimant knows or should know that its rights have been infringed. Attorney Song handles a wide variety of contract disputes, breach of contract claims, and commercial debt recovery cases. In real estate matters, he handles property purchase disputes, title issues, and real estate development conflicts.

Attorney Song holds the professional title of third-level lawyer and is a member of the All China Lawyers Association. His extensive experience spans both civil litigation and criminal defense, providing clients with comprehensive legal services from his base in Chengdu.