Book excerpt: Mental health professionals are testifying in court cases more than ever before, creating a need for standards that ensure psychological assessment tools are utilized properly, ethically, and to their fullest potential. Focusing on the Millon Clinical Inventories - used for determining the presence of personality disorders and other forms of psychopathology - this volume accessibly details how and when to use these tests optimally in both civil and criminal cases. Beginning with an overview of the Millon Inventories, chapters then integrate empirical research, forensic case studies, case law, and theoretical applications to detail the role of psychological testing in forensic assessment. Focusing on the Millon Clinical Multiaxial Inventory (MCMI) and the Millon Adolescent Clinical Inventory (MACI), these chapters cover psychometric issues in court, legal and ethical considerations, guidelines for preparing courtroom testimony, and the pros and cons of computerized reports in court. The authors describe specific applications of the tests for both criminal and civil cases, exploring how the tests can be applied in cases of personal injury, disability, child custody, and parental fitness cases; to evaluate sex offenders, juveniles, and perpetrators of domestic violence; and to determine competency to stand trial and criminal responsibility.