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Handling Procedures
retrieved Feb 11, 2020, https://firearms-examiner…
Handling Procedures
retrieved Feb 11, 2020, https://firearms-examiner.training.nij.gov/
Module 6
Made By: Mariya Dudin
Objectives:
- Types of Evidence
- Class and Individual Characteristics
- Associative Evidence
- Crime Scene
- Evidence in the Laboratory
Types of Evidence:
Physical
- Physical objects (often minute in size)
- Corroborative evidence
- Circumstantial evidence
Trace Evidence
- minute and transient
- measurable
- VERY IMPORTANT
Biological
- blood
- semen
- saliva
- bone
- skin
- hair
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Touch DNA Evidence
- A DNA profile may be obtained by swabbing items thought to have been handled by a suspect, even in the absence of visible evidence
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The Crime Scene
Safety
- priority is to protect life
Protecting the Scene
- minimize the risk of contamination and loss of evidence
- access limited
- Officer placed in charge
Recording the Scene
- notes: written and audio
- sketches and diagrams
- photography: still and video
Chain of Custody
must include:
- unique identifier
- item description
- identity of the person who collected the item
- time and date
- location
Firearms Evidence
- unloaded and placed in a safe condition
- fired and unfired ammunition should be collected
- objects with bullet holes should be collected
Toolmark Evidence
- various techniques to collect
- strong secure container
- varying sizes
Evidence Submission
- Proper Documentation
- Receipt of Evidence
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