Forensic Firearm Examination provides the reader with a thorough understanding of theory, application, and process of firearm comparison. It is essential in the field of forensic firearm examination to not only understand the marks that examiners are observing, but more importantly learn where these marks come from during the manufacturing process. This book explores the various machining techniques utilized in the manufacturing process and the resulting marks left by those tools. This information will equip the examiner with the knowledge to answer questions posed by the legal system regarding the uniqueness or potential similarity of marks on firearms imparted to fired bullets and cartridge cases.