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Forensics ch 2
Key Terms from Forensics chapter 2
| Term | Definition |
|---|---|
| chain of custody | the documented and unbroken transfer of evidence |
| circumstantial evidence | evidence used to imply a fact but not support it directly |
| class evidence | material that connects an individual or thing to a certain group |
| crime-scene investigation | a multidisciplinary approach in which scientific and legal professionals work together to solve a crive |
| crime-scene reconstruction | a hypothesis of the sequence of events from before the crime was committed through its commission |
| datum point | a permanent, fixed point of reference used in mapping a crime scene |
| direct evidence | evidence that (if authentic) supports an alleged fact of a case |
| first responder | the first safety official to arrive at a crime scene |
| individual evidence | a type of evidence that identifies a particular person or thing |
| paper bindle | a folded paper used to hold trace evidence |
| primary crime scene | the location where the crime took place |
| reliable evidence | evidence that is consistent when retested |
| secondary crime scene | a location other than the primary crime scene, but that is related to the crime; where evidence is found |
| subdatum point | one of several reference points of known coordinates marked from a measurable distance and direction from the datum point |
| trace evidence | small but measurable amounts of physical or biological material found at a crime scene |
| triangulation | a technique used to record evidence location from two fixed reference points |
| valid evidence | evidence (testimony, exhibits, demonstrative evidence, and documentary material) that is properly collected and documented and that truthfully supports a claim based on objective, scientific data from reliable sources |
Created by:
JohnW