This essay critically examines the contribution of psychology to understanding the decision-making process of juries. It explores the factors that impact jurors' decisions and the importance of evidence and legal perspective. The essay also discusses the challenges faced by jurors and the role of advocates in presenting their case. The study of the behaviour and mindset of jurors is effective in understanding the decision-making process. The essay concludes that the duties of jurors require mental capacity, intellect, and a thorough understanding of the law.