Determining whether a death was self-inflicted or caused by another is one of the most challenging tasks in forensic investigation. In HOMICIDE: SUICIDE vs HOMICIDE DETERMINATION, veteran police officer and undercover SVU detective Steven David Lampley draws on over two decades of experience investigating violent crime to guide readers through the complex world of death classification. This comprehensive guide explores the critical differences between suicide, homicide, and accidental death, examining physical evidence, behavioral patterns, weapon placement, wound characteristics, and toxicology. From scene reconstruction to cold case reclassification, Lampley reveals how investigative errors, bias, and tunnel vision can lead to misclassification-and the profound consequences such mistakes carry for justice, families, and society. Packed with case studies, forensic analysis, and practical checklists, this book offers an inside look at the investigative process while equipping readers with the knowledge to understand how professionals differentiate self-inflicted deaths from predatory violence. Whether you are a law enforcement officer, forensic student, or curious reader, this book provides a compelling, accessible, and meticulously detailed exploration of one of the most critical responsibilities in criminal investigation: getting it right.