Book excerpt: Although law enforcement codes have a history that parallels most other recent occupational and professional codes, they have been almost completely ignored in the literature of occupational and professional ethics. This volume fills that gap and offers teachers in criminal justice ethics and law enforcement practitioners a rich selection of materials that have emerged in the course of law enforcement professionalization. The book's historical and international orientation reveals something of the development and variety of code formation. A detailed introduction covers the role of codes in professional life as well as the purposes, problems, and value of ethical codes. The substantial bibliography offers students and scholars of professional ethics a unique resource for further research.