This book presents an integrated forensic approach to psychology. Its purpose is to help African institutional settings in particular better manage the criminal justice systems in a structured, safe, supportive and progressive environment while also exploring all the psychological influences that impact the people and society. This book presents a concise, comprehensive, evidence-based action formulated from forensic psychology and its sub-areas, including police psychology, corrections psychology, cyber-psychology, military psychology, investigative psychology, nutritional psychology, health psychology, clinical and community psychology, personality assessment, social psychology, human sexuality, adolescent development, and the teaching of legal psychology, public service psychology, and school psychology. It has concise writing yet presents a comprehensive textbook with all the contents required to teach a typical introduction to forensic psychology text in an interdisciplinary way.