Lawyer Harry Potter discusses the development of the common law role of the jury under Henry II. The role of Juries of Presentment and how they became more significant as Henry’s roving judges to enforce the common law became more influential. Potter explains the role of these juries. The end of trial by ordeal in 1215 by Pope Innocent III led to further developments in the role of the jury in providing a verdict. The film concludes with an account of the first known English jury trial in 1220.