General
Knowledge
Knowledge
The term refers to the study of evidence found at the crime scene, such as DNA , fingerprints, and/or firearms.
What is forensic science?
This type of evidence is collected from the immediate area surrounding the victim, often crucial in reconstructing the crime scene.
What is trace evidence?
Unique patterns, made by friction ridges (raised) and furrows (recessed).
What is a fingerprint?
The castoff of a blood droplet that generally points to the direction of travel of the blood drop.
The tail
The nameless killer who used a pseudonym and was never identified. He operated in Northern California in the late 1960s, and murdered five known victims in the San Francisco Bay Area.
The Zodiac Killer
Reason a person commits a crime.
What is motive?
First hand observations.
What is direct evidence?
3 other prints that are unique to an individual.
What is the ear, voice, toes, lips, iris, palm, tongue, foot soles?
The diameter of a blood droplet tells us this about the origin of the blood.
The height
this notorious serial killer, active during the late 1800's was known as "jack the ripper" what was his actual name
who is unidentified?
The primary detective for the Green River Killer Case.
Who is Dave Reichert?
Indirect evidence that can be used to imply a fact but that does not prove it.
What is circumstantial evidence?
The 3 common types of fingerprints.
What is whorl, loop and arch?
This blood type in the universal Donor
Type O
this notorious killers active in the 1970s and 1980s known as "the night stalker"
who is richard ramirez
When a person comes in contact with an object or another person, a cross-transfer of physical material can occur.
What is Locard's Principle of Exchange?
This method of documenting a crime scene involves creating a detailed scaled drawing of the area and its physical evidence
What is crime scene sketching?
Name 2 characteristics of fingerprints.
What is ridge ending, bifurcation, short ridge, island, ridge enclosure, spur, bridge, delta, island?
This blood type is the universal recipient
Type AB
this American serial killer known as the "green river killer" targeted young women in the Seattle area during the 1980's and 1990's
gary ridgway
The first 3 steps police do when they have a crime scene.
What are:
1. secure the crime scene
2. video tape the crime scene
3. mark evidence with a "tent" and take pictures?
The 2 types of circumstantial evidence.
What is physical and biological evidence?
Fingerprint pattern where 2 loops oriented in opposing orientations that result in a whirlpool like pattern.
What is a double loop whorl?
The trig formula used to determine the angle of impact of a blood droplet.
α = arcsin(W/L)
this American serial killer, known as the "btk killer" taunted the police and media with letters during his killing spree
who is dennis raider