Across
- 2. Evidence, Material deposited at a crime scene or accident scene that can only be detected through a deliberate processing procedure. Examples include hair and clothing fibers.
- 5. Profiling, The process of testing to identify DNA patterns or types. In forensic science, this testing is used to indicate parentage, or to exclude or include individuals as possible sources of body fluids and other biological evidence (bones, hair, teeth).
- 8. Anything that has been used, left, removed, altered, or contaminated during the comission of a crime or other event under investigation.
- 9. Characteristics, Ridge endings, bifurcations, enclosures, and other ridge details, which must match in two fingerprints for their common origin to be established.
- 10. Spatter, The pattern of blood that has struck a surface. This pattern can provide vital information about the source of the blood. Blood spatter can help determine the size and type of the wound, the direction and speed with which the perpetrator was moving, and the type of weapon used to create the blood spill.
- 13. The internal and external examination of a body after death. An autopsy is performed to confirm or determine the cause of death and establish other pre-death conditions, such as the type of food last consumed and the time it was consumed.
- 16. Science, The application of science to law.
- 19. Fingerprint, A fingerprint made by deposits of oils and/or perspiration, not usually visible to the human eye. Various technologies, including lasers, can be used to identify latent fingerprints.
- 20. A red blood cell protein responsible for transporting oxygen in the blood stream. Also provides the red coloring of blood.
- 23. The study of criminal activity and how it is dealt with by the law.
- 25. Analysis, When comparing a known object to one that needs to be identified, analysts will break down photos of each into small portions, and compare the respective similarites within those portions.
- 27. A substance that accelerates a chemical reaction but is not itself permanently changed by the reaction.
- 28. Deoxyribonucleic Acid. It provides a powerful technique for uniquely identifying the person or animal that left traces of body fluids at a crime scene.
Down
- 1. The study of the motion of bullets and the examination for distinctive characteristics after being fired. Examiners can use this evidence to match bullets or bullet fragments to specific weapons.
- 3. The path of a projectile.
- 4. Track, The path of a bullet or projectile as it passes through matter, such as a body or a wall.
- 6. A unit of inheritance consisting of a sequence of DNA that determines a particular characteristic in an organism.
- 7. Drawing, A sketch of a suspect produced from eyewitness descriptions of one or more persons.
- 11. The study of poisons and drugs and thier effect on human and animal populations.
- 12. Chromatograph (GC), A forensic tool used to identify the chemical make-up of substances used in the comission of crimes. The questioned substance is burned at high temperatures. The temperature at which the material becomes gas is then charted to determine its make-up.
- 14. The unique patterns created by skin ridges found on the palm sides of fingers and thumbs.
- 15. Interpretation, The interpretation of size, shape, orientation, and distribution of blood stains on various surfaces. Information about that event can be derived from the proper interpretation of the stains.
- 17. Electrophoresis, The technique by which DNA fragments are placed in a gel and charged with electricity. An applied electric field than separates the fragments by size, as part of the process of creating a genetic profile.
- 18. Detector, Also known as a "Polygraph". A machine that charts how respiration ond other bodily functions change as questions are asked of the person being tested. An attempt to knowingly provide false answers can cause changes in bodily functions. These tests are not usually admissable in court because many scientists and others consider the results to be unscientific and inconsistent.
- 19. A chemical that is capable of detecting bloodstains diluted up to 10,000 times. It is used to identify blood that has been removed from a given area. It is an invaluable tool for investigators at altered crime scenes.
- 21. Evidence, Any object that can help explain an event under investigation. For example, it can establish that a crime has been committed, and sometimes it can provide a link between a crime and its victim or between a crime and its perpetrator.
- 22. A technology dealing with the properties and actions of serums in blood; also known as "blood analysis".
- 24. Glue Fuming, Techniques used to develop latent fingerprints on non-porous surfaces. A chemical in the glue reacts with and adheres to the finger oils, and then exposes latent prints.
- 26. The diameter of the bore of a rifled firearm, usually expressed in hundredths of an inch or in millimeters. For example, a Colt 45 has a bore of .45 of an inch.