The book is dedicated to the theoretical problems concerning ratio legis. In the contexts of legal interpretation and legal reasoning, the two most important intellectual tools employed by lawyers, ratio legis would seem to offer an extremely powerful argument. Declaring the ratio legis of a statute can lead to a u-turn argumentation throughout the lifespan of the statute itself – in parliament, or in practice during court sessions, when it is tested against the constitution. Though the ratio legis argument is widely used, much about it warrants further investigation. On the general philosophical map there are many overlapping areas that concern different approaches to human rationality and to the problems of practical reasoning. Particular problems with ratio legis arise in connection with different perspectives on legal philosophy and theory, especially in terms of the methods that lawyers use for legal interpretation and argumentation. These problems can be further subdivided into particular aspects of activities undertaken by lawyers and officials who use the ratio legis in their work, and the underlying theories. In short, this book examines what ratio legis is, what it could be, and its practical implications.

Wael B. Hallaq has already established himself as one of the most eminent scholars in the field of Islamic law. In this book, first published in 1997, the author traces the history of Islamic legal theory from its early beginnings until the modern period. Initially, he focuses on the early formation of this theory, analysing its central themes and examining the developments which gave rise to a variety of doctrines. He concludes with a discussion of modern thinking about the theoretical foundations and methodology of Islamic law. In organisation, approach to the subject and critical apparatus, the book will be an essential tool for the understanding of Islamic legal theory in particular and Islamic law in general. This, in combination with an accessibility of language and style, will guarantee a readership among students and scholars and anyone interested in Islam and its evolution.

This book charts the evolution of Islamic dialectical theory (jadal) over a four-hundred year period. It includes an extensive study of the development of methods of disputation in Islamic theology (kalām) and jurisprudence (uṣūl al-fiqh) from the tenth through the fourteenth centuries. The author uses the theoretical writings of Islamic theologians, jurists, and philosophers to describe the concept Overall, this investigation looks at the extent to which the development of Islamic modes of disputation is rooted in Aristotle and the classical tradition. The author reconstructs the contents of the earliest systematic treatment of the subject by b. al-Rīwandī. He then contrasts the theological understanding of dialectic with the teachings of the Arab Aristotelians–al-Fārābī, Avicenna, and Averroes. Next, the monograph shows how jurists took over the theological method of dialectic and applied it to problems peculiar to jurisprudence. Although the earliest writings on dialectic are fairly free of direct Aristotelian influence, there are coincidences of themes and treatment. But after jurisprudence had assimilated the techniques of theological dialectic, its own theory became increasingly influenced by logical terminology and techniques. At the end of the thirteenth century there arose a new discipline, the ādāb al-baḥth. While the theoretical underpinnings of the new system are Aristotelian, the terminology and order of debate place it firmly in the Islamic tradition of disputation.

This provides a comprehensive approach and includes both literal translations and definitions with several useful innovations. Included is not only the modern English pronunciation but also the classical or 'restored' one. Each entry is also cross-referenced to related terms for ease of use.

This book is a scientific treatise on the principle of legality in criminal law. It explores the relation between the principle of legality and the general theory of criminal law and contains definite rules emphasized for practitioners as well as academia.