This report provides an in-depth analysis of the separation of powers within the Singaporean government, as established by its constitution. It examines the roles of the legislature, executive, and judiciary, highlighting the checks and balances designed to prevent any single branch from becoming overly powerful. The report specifically focuses on Article 9 of the Constitution, which addresses the protection of life and personal liberty. It explores how the judiciary safeguards these rights, including the interpretation of Article 9 in landmark cases like Yong Vui Kong v Public Prosecutor, and the definition of key terms such as 'life' and 'personal liberty.' The report also discusses the concept of constitutional supremacy and the judiciary's role in ensuring that laws are consistent with the Constitution. Furthermore, it touches upon the positive and negative obligations of the state in relation to Article 9, providing a comprehensive overview of the constitutional framework and its implications for individual rights and liberties in Singapore.