Crime Scene Investigation  

 

The Crime Scene Unit (also known as CSI or ID) is primarily responsible for identification, examination, processing and collection of physical evidence, as well as photographic and video documentation of the crime scene. The Crime Scene Unit’s actions are designed to assist in criminal investigation as well as possible follow-up in the judicial system. In addition, the various types of evidence submitted by other officers of the Sheriff's Office to the Crime Scene Unit are processed, examined, documented and a report is compiled with the results of the examinations.

The Crime Scene Unit works in close association with the Criminal Investigations Bureau, Forensics Lab, the Property Management Division, Patrol Division and the Accident Investigation Unit. The Crime Scene Unit also offers its services to other area law enforcement agencies as well as the County Fire Investigation Unit when requested.

Types of evidence involved may include: fingerprints, palm prints, footprints, shoe/boot prints, tire impressions, tool marks, ballistic evidence, clothing, hairs, fibers, DNA/ biological material, paint chips, glass fragments, soil samples, papers, drugs, weapons, tools, burn patterns and blood spatter patterns.

Each Crime Scene officer shares in the daily tasks which include laboratory, office duties, crime scene/field work, digital image processing, weekend, holiday and midnight on call. The Crime Scene Unit responds to homicides, suicides, suspicious deaths, rapes, robberies, burglaries, arsons, assaults, abductions, suspected child abuse, stolen vehicles, autopsies, fatal or serious injury motor vehicle crashes, etc.

The Crime Scene Unit uses digital photography at every scene as well as video recording at major crime scenes. The Crime Scene Unit also uses latent fingerprint powders and liquids, "super glue" fumes, trace evidence vacuums and tape, casting materials, blood and DNA collection kits and alternate light sources to recover evidence. Latent fingerprints developed by the Crime Scene Unit are entered into an Automated Fingerprint Identification System (AFIS) for comparison to known suspects on file.