The handbook provides information on legal and laboratory requirements associated with collecting and preserving physical evidence and describes general evidence collection and preservation procedures. Initial chapters focus on such topics as bloodborne pathogens, evidence integrity, photography, body fluid stains and standards, firearms and ammunition, gunshot residue, casts, latent and inked prints, footwear and tire impressions, burglary, and building materials. Subsequent chapters cover tool marks, paints, metals, clothing and fabrics, fracture and tear matches, autopsy, dental identification, bite marks, sex offenses, hairs and fibers, toxicology, drug identification, arson, explosives, documents, and computer seizure. A criminal evidence form is appended. Tables, figures, and photographs