Uses of Photography in Crime Investigation
1. Identification of the subject
a. Frontal whole body
b. Frontal half body
c. Half body right side
d. Half body left side
e. Left Quarter view
f. Right Quarter view
2. Preservation of evidence
3. Description of the Crime Scene
4. Substitution to original documents/evidence
5. Record
Procedure in Photographing the Crime Scene
1. General View or Long-range
2. Medium View or Mid-range
3. Close-up View/ Range
Sequential Photographs of the Crime Scene
1. Views of the exterior of the building/ vehicle in relation to other buildings/ vehicles,
roads/ streets, etc.
2. Point of entry and exit outside and inside.
3. Interiors of the crime scene/ room.
4. Condition of the crime scene.
5. Area from which valuable articles were removed
6. Articles left at the scene.
7. Trace evidence, such as hairs, fibers,
footprints and cigarette butts.
8. Tool marks and impressions of shoes or tire tracks.
9. Fingerprints as well as articles on which these prints may be found.
Parts
Camera
and
function
of
a
•
Basic Parts of the Camera
a. Viewfinder
b. Shutter
c. Focusing Mechanism
d. Lens
e. Body
Types of Sensitize Material
1. Film
2. Sensitize Paper
Steps to follow to obtain good photographs
1. Set your ASA/ISO dial according to the film speed
Films ASA 50, 100, 200, 400
2. Setting the shutter speed
B, 1, 2, 4, 8, 15, 30, 60, 125, 250, 500, 1000, 2000
3. Setting the lens opening or f-stop
f/1.4, f/2.8, f/4, f/5.6, f/8, f/11, f/16, f/22
4. Adjust your light meter needle
5. Compose your shot and focus.
Original object Out of Focus
Sharp Focus
Exposure using a flash
A. Steps to Follow to Obtain Properly Exposed Film in Artificial Light (i.e. Flash)
Photography.
1. Adjust the proper ASA setting according to the speed of the film being used
2. Aperture setting corresponds with the distance indicated on your flash scale and
distance to the subject.
3. Get the desired DEPTH OF FIELD
b. FLASH lighting techniques
1. Direct Flash
2. Bounce Flash
3. Multiple Flash
Summary
1. Remember the 3 important controls in a camera.
2. The processes involved in photography.
3. Procedure in taking photograph of a crime scene and physical evidence.
4. The responsibility of a crime scene photographer.