Explore the intricacies of facial comparison and analysis in civil and criminal investigations through this comprehensive lecture. Delve into the assessment of individual identities using photographs and facial feature comparisons within a legal context. Learn about software tools, general assessment procedures, challenges, benefits, and applications of one-to-one facial comparison. Gain practical insights through case studies that demonstrate how this methodology has been successfully applied in solving investigations. Understand the role of facial comparison in intelligence gathering, identity management, screening, access control, and forensic identification. Discover the concepts of holistic comparison and superimposition in creating scaled overlays. Acquire knowledge about quality management practices and the use of facial comparison as an investigative and operational tool to assist triers of fact.