Across
- 3. The initial responding law enforcement officer(s) and/or other public safety official(s) or service provider(s) arriving at the scene prior to the arrival of the investigator(s) in charge.
- 4. any evidence that can link a person or an item to the scene of the crime
- 6. Objects or materials that have retained the characteristics of other objects that have been physically pressed against them.
- 9. material of a known source that presumably was uncontaminated during the commission of the crime.
- 10. Physical evidence that results from the transfer of small quantities of materials (e.g., hair, textile fibers, paint chips, glass fragments, gunshot residue particles).
- 14. a test that is typically conducted at a crime scene that provides investigators with basic information regarding the compound in question.
- 15. The unwanted transfer of material between two or more sources of physical evidence.
- 17. Powder containing fluorescent chemicals that is applied to a surface to reveal latent prints; used in conjunction with an alternate light source.
- 20. reconstructive evidence allows investigators to gain an understanding of the actions that took place at the scene; a broken window, a blood spatter pattern, bullet paths and shoe prints.
- 21. The process used to maintain and document the chronological history of the evidence.
Down
- 1. A fingerprint, palm print or footprint that is not readily visible under normal lighting.
- 2. possessing the potential to provide details that are valuable to an investigation.
- 5. physical evidence such as bodily fluids that originated from a human, plant or animal.
- 7. Individuals who are involved in an aspect of the crime scene, such as perimeter security, traffic control, media management, scene processing, and technical support, as well as prosecutors, medical personnel, medical examiners, coroners, forensic examiners, evidence technicians, and fire and rescue officers.
- 8. a special lighting device that produces visible and invisible light at various wavelengths to help investigators locate and visually enhance items of evidence
- 11. smaple evidence of unknown origin; these samples could be found at a crime scene, transferred to an offender during commission of a crime, or recovered from more than one crime scene.
- 12. material from a verifiable/documented source which, when compared with evidence of an unknown source, shows an association or linkage between an offender, crime scene, and/or victim.
- 13. Evidence which by its very nature or the conditions at the scene will lose its evidentiary value if not preserved and protected (e.g., blood in the rain).
- 16. the theory that every person who enters or exits an area will deposit or remove physical material from the scene.
- 18. The unwanted transfer of material from another source to a piece of physical evidence.
- 19. material of a known source taken from a person who had lawful access to the scene.