Term
The case jacket includes: |
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Definition
- Records of all administrative documents pertaining to a case.
- All documentation of evidence.
- All data generated
- Meetings
- Phone calls
- Crime scenes
- Chain of custody
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Term
Adminstrative documets include: |
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Definition
- Requests for examination
- Evidence intake
- Chain of custody
- Any supplemental material
- Any police reports
- Any court orders
- Phone logs
- Meeting logs
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Term
Crime scene reports include: |
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Definition
- Date, time, and location
- Individuals present (CSIs, detectives, etc.)
- What is done, by whom, and when
- Location of evidence
- Collection of evidence
- Disposition of evidence
- Sketches
- Photos and photo logs
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Term
Documentation of evidence includes: |
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Definition
- Worksheets
- Sketches
- Photographs
- Disposition of evidence
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Term
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Definition
- Bench notes
- record the appearance & condition of evidence
- stains/damage/etc, smell, measurements
- include everything you do
- tests, results, match (or not)
- Should be in ink.
- Initialed.
- Case identifiers.
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Term
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Definition
- Every step must be documented:
- supplement with photos
- diagrams
- Screening tests:
- ID chemicals
- Batches and expiration dates
- mark location of screenign tests with initials
- Cuttings must be marked
- Create sub-items:
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Term
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Definition
- Instrumentation:
- Name
- Method
- Control samples
- Validation standards
- Any preparation
- Chemical testing:
- Controls
- Batches
- Expiration dates
Was any evidence consumed??? |
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Term
All written reports should contain: |
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Definition
- Name of the examiner who conducted the tests
- Agency where the examiner works
- The date the report was issued
- Case ID information
- Examiner's contact information
- Items examined
- Methods/instrumentation used to examine and analyze any submitted items
- A statement of the disposition of the evidence
- Signatures of the examiner and any reviewers of the report
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Term
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Definition
- Keep it simple and concise
- List ALL items of evidence
- List ALL inclusions and exclusions
- often clearer to list inclusions and then exclusions
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Term
Construction Examinations: |
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Definition
- Ascertain how an item is made
- identify various methods of construction
- May involve determining what an item is made of
- Indicate a common source between 2 items
- Can help determine if an item should undergo further testing
- Good screening test
- Process of determining construction depends on the item itself.
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Term
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Definition
- Two categories:
- Twisted
- Usually consists of 3 strands
- Strands are made from twisted yarns
- Strands may be right-laid (Z) or left-laid (S)
- Braided
- Interweaving of 3+ strands
- Diagonal overlapping pattern
- Variety of patterns
- Solid braid
- Diamond braid (with or without core)
- Twisted braid
- Forensic examination:
- General microscopic examination regarding the general condition (wear, cuts, broken/frayed ends, etc.)
- Preserve the ends and any knots that appear along the length
- Construction Characteristics:
- Diameter
- Staple or filament fibers
- Twisted, braided, or non-twisted
- Lay (Z or S)
- Length of lay
- Number of piles or brainds
- Twist of each ply or braid
- Crowns or turns per inch
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Term
Pressure Sensitive Tapes: |
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Definition
- What is pressure sensitive tape?
- consists of a pressure sensitive adhesive coated onto a backing material.
- Stick with the application of pressure without the need for solven, heat, or water for activation.
- Types of tape:
- Transparent
- Gaffer
- Duct
- Polyethylene film and woven fabrick backing.
- Thich layer of pressure sensitive adhesive on the fabric side.
- Film can be laminated to fabrick or extruded onto the fabric
- Packing
- Masking
- Strapping
- Electrical
- Surgical
- Double-sided
- Adhesive transfer
- Hockey
- Spike
- Forensic Examination:
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