The book describes previous efforts to compile research instruments into one comprehensive source and criteria used to select scales for this handbook. The scales are categorized into seven target groups and described in individual chapters: law enforcement and the police, courts and the law, corrections, delinquency, offenders, crime and criminality, and general scales for citizens and specific groups of noncriminals. Each chapter covers the following scale types: attitude measures, behavior ratings, personality assessment, milieu ratings, prediction, and descriptive scales. Each entry includes a brief description; many provide data on the response mode, scoring, norms, reliability, and validity. The book also presents guidelines on protecting human subjects and discusses special scales developed from the Minnesota Multiphasic Personality Inventory (MMPI) and the California Psychological Inventory (CPI). These include the Socialization, Delinquency Proneness, CPI-Z, and Law and School Difficulties scales from the CPI as well as the Megargee Offender Classification System and the Sociopathy and Overcontrolled Hostility scales from the MMPI. References accompany each chapter. A bibliography of over 80 references and an index are supplied.