COMPLETE SOLUTIONS LATEST UPDATE
what is ground penetrating radar?
equipment used to view changes in subsurface. Can see disruption in the soil, CSI use
to see graves
restriction of ground penetrating radar technique
- cannot give a precise location of grave
- cannot confirm of deny presence of human remains
- slow process is affected by water
forensic odontology
the use if teeth and dental record to provide information about the identification of a
victim.
what is the process of bite mark analysis
comparing dental records to the impressions made on victims skin
bite mark analysis relies on two assumption
1. dental impressions are unique to individuals
2. human skin reliably record the transfer and preservation of bite mark impression
issue with bite mark analysis
the assumptions that every bite impression are unique and the skins ability to retain
impression preservation are not proven
advantages of VR CSI training
,-higher engagement
-report higher memory and better scoring
-can learn by watching, interacting, or semi-interactive (watch and questions)
what is augmented reality (AR)
system that streams video from a body camera worn by police officers to experts
elsewhere.
how can the scientific method be applied to csi
observation: crime scene, evidence
hypothesis: formation of theory of crime
methods: validating or invalidating the hypothesis
role of Crime Scene Examiner
- recording, documenting, and examining the scene
- collection and preservation of evidence
- submission of evidence to CFS
- testifying
- avoid tunnel vision
what is FIO
Forensics identification officer
what does FIA stand for
forensic identification assistant
what does SOCO stand for
scene of crime officer
what does FSA stand for
, forensic services assistant
whats does SCS stand for
scenes of crime specialist
what does CSST stand for
crime scene support technician
what type of camera is typically used for crime scene photography
digital single lens reflex (DSLR)
what is a CCD and how is it used
Charge Coupled Device. The CCD contains photo sensors where the image stays when
passed through the lens. CCD exposure depends on the aperture and shutter speed
JPEG definition
Joint Photographic Experts Group
- lose quality the more you open/ close file
TIFF definition
Tagged Image File Format
- high quality, lost less compression
- good for fingerprint analysis
RAW file format definition
original format of the photo. every camera is different. also called "negative" format
what is aperture
the size of the lens opening, to let light pass
- F4 is largest opening, lets most light in
- F32 lets the least amount of light in