The 7 S's
The first thing the first responder arriving to a crime scene should do.
What is "call for back-up", "get help", etc.
Perception is...
a. Not always accurate
b. Can be faulty
c. Not always reliable
d. All of the above
Something transferred or left behind at a crime scene is this kind of evidence.
What is trace evidence?
This type of print is made by an impression of a finger in something soft.
What is plastic?
These are the 3 main patterns of fingerprints:
Loop
Whirl
Arch
This is the reason witnesses are separated at a crime scene.
What is collusion, talking together, etc.
This is the reason pictures are taken of evidence before collection.
What is contamination, ruining the evidence, etc.
Eye-witness statements are this type of evidence.
What is direct evidence?
This type of print requires dust, gas, or glue to see and collect.
What is latent?
This print pattern occurs when ridges "leave" your finger towards the pinky.
What is an ulnar loop?
This drawing is done before leaving a crime scene and is not to scale.
What is a rough sketch?
Label the following crime scene searching methods:
a. Quadrant or Zone
b. Line or Strip
c. Grid Search
d. Spiral
(In order) c, a, d, b
Locard's Principal of Exchange implies which of the following (select all that apply):
a. Fibers can be transferred between two people
b. Blood Spatter can be used to identify blood type
c. Cat hair can be transferred to your pants
d. Soil can be carried from your yard into your home
a, c and d (Evidence can be transferred from one person/place to another)
What is a visible print?
The circled section of this fingerprint:
What is a delta
This is the process for tracking where evidence goes and who had access to it.
What is the chain of custody?
Which of these is an example of qualitative (not quantity) evidence?
a. A kilo of cocaine
b. Blood volume
c. Yellow liquid
d. Length of a stain
c. Yellow liquid (Yellow is a quality, not a number)
Fingerprints are this type of evidence.
What is individual evidence?
In the process of robbing a convenience store, a criminal left behind this kind of print in a half eaten, melty chocolate bar at the scene.
What is a plastic print?
This pattern has 2 deltas with a "core" between them.
What is a whorl?
The first responding officer at a hit and run arrived to find one person sitting on the curb and another still sitting in a car with a dented bumper. The officer sealed the area and then took photos of the car and the street and general area. Since the witnesses were already in separate places, he was able to next take statements. In the course of the interviews, it was found that the person on the curb had a large bump on her head and so the officer called for an ambulance. What order should the officer have done the steps?
1. Call ambulance
2. Seal scene
3. Take statements
4. Take photos
A local convenience store was broken into overnight. Surveillance footage shows a car pulling up to the back door of the store. A hooded person is seen breaking the lock and entering the building. A few minutes later, the person exits, carrying a bag filled with items, and drives away. Police track the car using its license plate, leading them to the suspect’s house. Upon searching the house, they find a stash of stolen goods, including electronics and cash taken from the store.
What is most likely the primary crime scene?
The convenience store.
Shoe size, hair color, skin color, etc. are all examples of this evidence type.
When collecting a latent print, dust latches onto this to make it more visible.
What are skin oils?
Select the minutiae pattern that is an island ridge:
D