Basic Physical Evidence Flashcards
(42 cards)
The systematic collection of information for identifying, apprehending, and convicting suspected offenders is ?
A Criminal Investigation
Something that furnishes proof is
satisfying to the triers of fact, such as the jury, or falsity of an allegation
What are the 3 types of evidence?
- Testimonial
- Documentary
- Physical
What is documentary evidence?
Evidence in written, not oral form
What is more reliable Physical evidence, or eye witness testimony?
Physical
What is Locard’s Exchange principle?
“Every contact leaves it’s trace”
What establishes a link between the various facets of the crime scene, the victim, and the suspect?
The Evidence Triangle
What are 3 methods of evidence documentation?
- written/recorded notes
- photography
- videotapes/sketches
When preparing rough notes you should
- Write in ink
- draw a single line through errors
- Make all entries in chronological order
What provides a 2 dimensional record of the crime and/or crime scene?
Sketches
Your title block on your sketch should include
- agency case number, case title or type of offense
- Date sketch was drawn
- Location of case
- Name of the sketcher/ assistants
What should be written in the key of your sketch?
“Not drawn to scale”
What will represent fixed points in a sketch?
Letters (A,B,C)
What are the basic stages to a crime scene search?
- Preparation
- Approach to the scene
- Basic premises
When are Evidence response teams especially valuable?
When a large crime scene is encountered or when there are multiple scenes in a given case
Who is the focal point of the crime scene investigation and is the person that exerts a position of control over the entire crime scene operation?
Team Leader
Who ensures all digital imagining is handled at a crime scene?
The photographer and the photographic log recorder
When dealing with a specialist what are some aspects to consider?
The competence and reliability of the specialist
3 things to consider when approaching a crime scene
- Officer safety is the first priority
- Render aid to victims
- Be alert for discarded evidence
What is the Golden Rule?
Do not touch, move or alter any evidentiary item until you document the scene
Even if a suspect confessed you still need to
document every case and it’s associated evidence thoroughly
What are not substitutes for thinking?
Forms
What are the 2 basic search approaches?
- Cautious
2. Detailed
What search method is used for covering large or open areas?
Strip or lane method