This article is based on a corpus of transcripts of four criminal courtroom trials in China. It investigates interruption in the Chinese criminal courtroom discourse as a highly institutionalized and strongly goal-oriented discourse. The study focuses on the number, functions, causes, and distribution of interruptions as well as their correlation with the Chinese legal system and legal culture. Interruptions in Chinese courtroom trials are substantially asymmetrical in terms of the number, functions, and causes in the sense that prosecutors interrupt the most and defense lawyers the least, wit...