Jon Lewis received his Master of Arts Degree in Criminal Justice from Chapman University in Orange California. He holds a Bachelor of Science degree in Criminal Justice with a minor in Speech Communication from Long Beach State University in California. He is a veteran officer with the Newport Beach Police Department, currently serving as a Sergeant and a member of the Special Weapons and Tactics (SWAT) Team.

An introduction to the types of biological evidence commonly found at crime scenes and how to collect it. This text is written in an easy to read and understand style for non-science majors and for professionals working in the criminal justice system. Specific biological evidence discussed includes blood, semen, saliva, urine, feces, hair, and fingernails. Additional topics include autopsy, the basic departments of the crime laboratory, toxicology, forensic entomology, and uncollectible biological evidence. Packaging, preservation, and care of biological evidence is discussed and chain of custody is explained. Additional topics include DNA, case studies, courtroom testimony, and exhibits for the courtroom.

CRIMINALISTICS FOR CRIME SCENE INVESTIGATORS

An introduction to the concepts involved in the field of Criminalistics from the professional and scientific disciplines dedicated to the recognition, collection, identification, and individualization of physical evidence and the application of the natural sciences to the matters of the law will be examined.