This study investigates the legal, historical, and criminological implications of the 'supergrass' system used in Northern Ireland during the 1980s to prosecute paramilitary activity. Steven Greer, a legal scholar, examines the controversial trials that relied on the testimony of informants who betrayed their associates in exchange for immunity or reduced sentences. The book provides a comprehensive framework for understanding how these proceedings challenged established norms of criminal justice and security policy within the United Kingdom.

Experts recognize this work as a foundational text for understanding the intersection of security policy and judicial integrity in Northern Ireland. Readers frequently note the academic rigor and the depth of the historical analysis provided by the author.