This essay provides a detailed overview of the English Criminal Justice System, starting with an introduction to its various departments and a discussion on the statement that the system is 'on its knees.' It explores the types and principles of law within England and Wales, including common law, international law, criminal law, employment law, and human rights law. The essay explains how crimes are handled by English courts, detailing the roles of Magistrates and Crown Courts and the right to appeal. It also examines the roles of various stakeholders involved in the criminal justice process, distinguishing between internal and external stakeholders. Furthermore, the essay analyzes how the effectiveness of the criminal justice process can be measured and improved, particularly during the COVID-19 pandemic, considering the impact of the pandemic on crime and justice analysis, and the challenges it poses to the system.