EVIDENCE OF ARSON OBJECTIVES Identify types of evidence
EVIDENCE OF ARSON
OBJECTIVES • Identify types of evidence • Demonstrate collection, documentation, and packaging of evidence • Understanding evidence analysis
TYPES OF EVIDENCE TO COLLECT • Physical – Tool Marks – Fire Debris – Hydrocarbons – DNA – Prints • Statements (witness, suspect, victim) • K-9 Alerts • Video/photo • Cell phone
EXAMPLES OF PHYSCIAL EVIDENCE • • Tool marks Fire debris (accelerants) Liquid sample (accelerants) DNA Fingerprints Powder analysis Fracture patterns
TOOL MARKS
FIRE DEBRIS IGNITABLE LIQUID PRESENSE
Hydrocarbon Evidence In Soil • Hydrocarbon evidence in soil must be placed in a clean, metal can • The can with the evidence must be kept frozen until it is analyzed by forensic technicians • Bacteria in the soil will degrade the hydrocarbon • Placing the evidence in a freezer will slow down the process of degradation
LIQUID SAMPLE IGNITABLE LIQUIDS
Pipette/Glass vial
Liquid Evidence packaged
DNA EVIDENCE
Dry DNA Evidence/Fingerprints
PRINTS
POWDER ANALYSIS
• Or anti-static collection bag
FRACTURE PATTERNS
OTHER EXAMPLES
INCENDIARY DELAY DEVICE
STATEMENTS Documentation of events, crime scene observations, statements (witness, victim, suspect), and anything pertinent to the investigation. **Remember, you may be testifying to these observations a significant time after the incident.
COMPOSITE ART
K-9 ALERTS
VIDEO EVIDENCE
CELL PHONE DATA
SUSPECT PHOTO / PHONE ANGELA MILLANDER
CELL TOWER
Snapchat
SUMMARY • Types of evidence to collect • Manner in which to collect all evidence • Understanding results of forensic analysis
EXCERCISE • Molotov Cocktail • Hydrocarbon in soil • Liquid sample
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