Types of Evidence
Who was known as the founding father of forensics?
Dr.Edmond Locard
How many hairs does the average human lose in a day?
40-125
Name a Non-seeding plant
Answers vary:
Ferns, Mosses, Liver warts
What is the smallest indivisible unit of textile?
Fiber
What are the three names for locations of a crime?
Primary, secondary, tertiary
What is locard's exchange principle?
States that when a person comes into contact with an object (or another person), a cross-transfer of physical evidence can occur.
The principle that explains how material is left at a crime scene is called ____
Locard's Exchange Principle
Name one angiosperm and one gymnosperm
Angiosperm: Corn
Gymnosperm: Conifer
When fibers are directly transferred from a suspect to a victim, what type of transfer is it?
Direct Transfer
Name 3 methods of search investigators can use to analyze a crime scene?
Spiral, Grid, Line/Strip, Quadrant
Provide 4 examples of Direct Evidence.
Eyewitness Accounts, Police Dashboard, Video Surveillance, Voice Recordings, Signed Ransom Notes, Reports (toxicology, lab, etc)
which ways can hairs be collected at a crime scene?
Define Pollen Fingerrint
The number and type of pollen grains in a geographic area at a particular time of year
Which method of collecting fibers involves using sticky material to lift them off surfaces?
adhesive removal
Who makes sure the 7 steps of CSI are followed during a crime scene invetigation?
Lead Investigator
What is the medulary index formula?
MI=MD/HD. (Where, MI= Medullary Index, MD=Medulla Diameter, HD=Hair Diameter)
what is the hairs main function?
regulate temperature, act as a sensory organ, and protects.
Define Forensic Pathology
The study of pollen and spore evidence to help solve criminal cases.
Wool, cashmere and silk are examples of fibers derived from which source?
Animal fibers
How a crime scene is searched is dependent on the _______ of investigators at the scene.
Number
What is circumstantial evidence and give atleast 3 examples.
Circumstantial evidence is indirect evidence
that can be used to IMPLY a fact, but not
directly prove it. Ex: Prints (fingerprints, bite marks, tire prints), DNA, Ballistic Evidence, Fibers, Hair.
___ is the top layer of the earth's crust and can be examined to determine the type of area an suspect was in.
Soil
List the ways pollen can travel
Wind, Water, Animals
This synthetic fiber, often found in outdoor clothing, it is known for its resistance to wrinkles?
What are the 7 steps of CSI?
1. Secure
2. Separate
3. Scan
4. See
5. Sketch
6. Search,
7. Secure