1.4 Forensic procedures Flashcards
What can DNA evidence prove?
Tie someone to a crime or prove their innocene (ruling them out)
- can establish if someone was responsible
Define forensic procedures
systematic methods and processes used in forensic science to collect, analyse and interpret evidence IOT assist in investegations and legal proceedings
Systematic methods + processes used to interpret evidence to assist in legal proceedings/investegations
What are the 6 forensic procedures?
- Crime scene investigation
- Evidence collection and preservation
- Forensic analysis
- Chain of custody
- Laboratory analysis
- Expert testimony
What is involved in crime scene investegations?
- Document, collect physical evidence
- Secure and preserve crime scene
- Collect relevant items
What is involved in evidence collection and preservation?
Follow specific protocols to collect and preserve evidence to maintain integrity and prevent contamination
What is involved in forensic analysis?
Examine evidence
- Fingerprint analysis, DNA, ballisitic, drug and toxicology.
What is involved in chain of custody?
- Create record of location, date, time, individuals involved in handling evidence
- Ensures admissibility and integrity of evidence in court
What is involved in labatory analysis?
- Detailed examinations of evidence
- Specialised equipment to analyse and interpret evidence
What is involved in expert testimony?
- Can be called to provide testimony in legal proceedings
- Present findings, explain scienftific techniques used
- Offer professional oppinion based on expertise
2 types of forensic samples
Intimate and non-intimate