This comprehensive study by Dr. Badri Mohammed Fahd delves into the rich history and enduring heritage of the Islamic judicial system. The book meticulously traces the evolution of the judiciary from its origins to its later developments, exploring its foundational principles, key institutions, and influential figures. It examines the theoretical frameworks and practical applications of Islamic law (Sharia) in dispensing justice, providing invaluable insights for students and researchers of Islamic history, law, and civilization. This work stands as a vital resource for understanding the mechanisms of governance and justice within the Islamic world throughout history.