This book provides an overview of the tools and guidance required by Law Enforcement Officers with detailed knowledge about interrogating a suspect in Nigeria… to the collection of conviction- ensuring evidence at a crime scene and… right through to the basics of forensic investigation and the legal rights of the suspects involved. There is analysis of how the concept of Tunnel Vision captures psychology, police investigation and attendant effects on the investigation of crimes. This book not only enumerates the ethics of interrogation, it also provides a valuable and workable information on ethics of crime scene investigations, scientific evidence and rights of suspects.