Photographing Crime Scene

Investigators must work against the clock to document evidence. Factors such as __________, __________, ___________ __ _____ may affect the time that investigators have at a crime scene

location, weather, time of day

Evidence must be ________ until it can be photographed

preserved

Photographs are important, as they provide __________/____________ and are required for presentation at a trial

documentation/reference

The crime scene must remain ______

Exception: cases where injured people need attention.

Sometimes accidents happen, must be documented

unaltered

If objects are removed, positions changed, or tampered with, the evidence may not be ________ in court

admissible

Crime scene should be photographed as ________ as possible.

completely

Photographs of the following should be made:

• Area in which the crime took place

• Adjacent areas to the crime scene

• Overview photographs

• Points of entry and exit

• Body (if applicable)

• Evidence

proper technique when photographing evidence

A item of "scale" should be in the picture (ex. Ruler, quarter,

etc.)

• Each piece of evidence must be photographed at 3 different

angles

• Each angle should be photographed at 3 distances (close, mid

range, long shots)- 9 total photos minimum

As physical evidence is discovered, the evidence is

photographed in an attempt to show its position and location _______ to the entire scene

relative

Sometimes, evidence is difficult to see and photograph. _________ _________ can help investigators make this evidence visible for photography.

Oblique lighting

Oblique lighting

uses a light source positioned at a low angle

Oblique lighting is usually used to show detail by creating ________ on

the surface of the evidence.

shadows

Oblique lighting is commonly used when....

photographing impressions, tool marks and certain types of fingerprints.

Oblique lighting uses a light source positioned at a _____ _____. A very low oblique angle of lighting can be used to photograph dusty footwear impressions and indented writing.

low angle