This essay delves into policy research concerning life imprisonment and capital punishment, examining the differences between inquisitorial and adversarial legal systems. It defines life imprisonment, its application in the English legal system, and its various types, including the context of the death penalty. The essay explores the concept of capital punishment, its ban in certain countries due to human rights violations, and the role of criminology in understanding victims and rehabilitation. The essay also examines the historical context and justifications of the death penalty and the role of judges in sentencing. It concludes that life imprisonment is a better alternative to the death penalty. The essay draws on the works of Béland (2017), Galster and Lee (2021), Henstra (2017), Hooley, Sultana and Thomsen (2018), and Markard (2018).