First unit responder a guide to physical evidence collection for patrol officers is a training guide and reference for patrol officers and criminal investigators who conduct preliminary. First unit responder a guide to physical evidence collection for patrol officers is a training guide and reference for patrol officers and criminal investigators who conduct preliminary investigations of crime scenes to aid in identification collection and booking of physical evidence written by a veteran of 24 years of law enforcement the book stresses the importance of understanding the critical nature of physical evidence and preservation of the crime scene as part of . Buy first unit responder a guide to physical evidence collection for patrol officers 1 by hawthorne mark r isbn 9780849300233 from amazons book store everyday low prices and free delivery on eligible orders. First unit responder a guide to physical evidence collection for patrol officers is a training guide and reference for patrol officers and criminal investigators who conduct preliminary investigations of crime scenes to aid in identification collection and booking of physical evidence. First unit responder a guide to physical evidence collection for patrol officers mark r hawthorne format book published boca raton crc press c1999 description 98 p ill 24 cm notes includes bibliographical references p 91 and index subject headings