key notes Flashcards
(30 cards)
Forensic science
science used for the purpose of the law
Application of science to the law
Locard’s principle
Every contact leaves a trace.
Legal examples
Criminal investigations
civil proceeding- relationship with each other
Consumer protection- faulty items
Environmental protection- toxic substances
collision investigation
Roles of a forensic scientist
Analysing evidence
Writing reports
Presenting in court
Rarely attend a crime scene
defendant lawyer
Verify or question the scientific integrity of the work carried out
corroborate or refute a question or hypothesis posed by the investigating team
fingerprints
class characteristics- whorls, loops etc individual characteristics
inconclusive
looks similar but no hard evidence
Elimination
No way
Identification
Definitely a match
How do the police know they should attend
notification from public
Alarm (direct link)
Security company
Police patrol
Responder in the control room
Gather relevant info- location, incident type, condition/dangers, suspects, injuries
FOA
First Officer attending
preserve life, initial scene security, public order, initial arrests
Uniformed response team
Arrests, establish cordons, search area, transport suspects
Volume crime
bulglary, vechile crimes
Major crime
physical assault (murder), sexual assault (rape)
Non-crime
suicide, sudden death, fatal fires, bomb threats
SOCO core competencies
Preservation, Documentation, Examination, Recovery
Roles of SOCO
Assessing the crime scene, sketching, measurements, photos, safe storage, victim support, present expert testimony in court
Process of scene examination
Risk assessment, cordon check, welfare issues, scene approach, photos/ videos, forensic collection
Types of intelligence
verbal info, DNA, footmark, tool marks, fingerprints, fingermarks
fingerprint recovery
photos for visible marks
powders- nonporus/ semi-porus surfaces
chemical development- porous and nonporus
what may need protection
victim, witnesses, Family/ public, entry/ exit points, trace evidence, weapons/ tools
what do they need protection from
weather, tides, animals/ insects, surroundings, contamination, public, perp, family, press
Contamination
make impure by exposure to or addition of a poisonous or polluting substance