This text builds upon earlier editions of Evidence in the Greens Concise Scots Law series but is a new textbook offering a fresh approach to the law of evidence. It focuses on how the key features of the adversarial system influence the way that evidence is gathered, assessed and used in the civil and criminal courts. Evidence - Principles, Policy and Practice provides broad coverage of the principles and concepts of evidence and sets these within a contemporary policy context. It takes account of the growing body of law from the European Court of Human Rights, considers the particular impact this has had on our adversarial system of justice, and anticipates areas of future development and law reform. Case law and statutory provisions are discussed to illustrate principles, as well as to present strategies and arguments and to identify the scope for reform. The text is designed to meet the needs of both law students and legal practitioners.