Photographing the scene
can you collect evidence before taking photographs is completed?
no
Environmental conditions to consider:
-heat
-rain
-wind
-snow
Considerations for humans?
-Person deceased, take photos before body is moved
-Various angles
-Facial view, positions of hands, clothing and feet
What are the five search methods?
-Spiral
-Wheel
-Zone
-Strip
-Grid
Numbers next to evidence we ______?
Take
Should you take photos at several angles?
yes
Photograph from where?
-Overall
-Mid-range
-Close range
Type of impressions?
-fingerprints, tires, footprints
Explain the spiral
-Center point and spiral out, can be done by one person
Letters next evidence, we ___________?
-Cannot take
How degrees perspective should you take photos?
360 degrees
Overall perspective means?
-A far
-entire perimeter of scene
-Land markers (house #'s, addresses, street sign)
Considerations when taking photos of impressions?
-Take quickly due to environmental conditions
-Should be captured with enough effect to produce contract
-30-38 inches away
Explain Wheel?
-Several people start back to back, start from center point, and everyone walks out from center
Methods to collect DNA?
-Buccal swabs
-Hair, tweezers
-Swab fluids
(Dry, use wet swab; wet, use dry swab)
Does a photographer four point the room?
yes
Mid-Range?
-Where evidence is located
-Pictures shows relationship between reference points and objects
-Approx. 10-20 feet
How do you document photos?
Who took photos
Explain Zone?
Break into four zones. Good for rooms. Each person searches their zone then switches. Each zone then gets searched at least twice
Explain proper bagging of evidence?
-Gloves?
-Guns?
-Biological evidence
-Always wear gloves
-Always unload guns, but not magazines
-Impound in a paper bag to allow to breathe and air dry
Photograph victim last?
true
Clsoe-range?
-To provide descriptive visual evidence
-Objects which are considered evidence
-Injuries of victims/suspects
-Rulers for perspective
-Within 5 feet or less
-Consider lighting
What info to include when documenting photos?
-Location and what photo of each is
Explain strip and grid?
-Strip: line up, side by side, walk together in same direction
-Grid: same as strip but walks other direction crossing the pattern, like grid paper
Explain proper bagging of evidence?
-Drugs?
-Bulky items?
-Sharp items?
-Currency?
-Drugs, put in vial or plastics bag except marijuana
-Bulk items, use tag to impound
-Sharp items, put in sharps container
-Currency, have two people count money