Physical Evidence / Policies and Procedures
Trace Evidence
DNA
Ballistics/Narcotics/Cell Phones
Packaging
100
What are the goals of evidence collection?
Successful prosecution of criminals
Exoneration of the innocent
100
What is trace evidence?
Any type of evidence that is small and can be transferred when two surfaces or people touch
100
When encountering visible DNA what two swabs do you need to take?
Control sample. Sample evidence.
100
If you've been trained in handling firearms and can render them safe in your previous profession, is it ok for you to transport and make safe firearms?
NO
100
What is the correct description of this object when booking?
White metal ring with a clear stone
200
If your city cell phone is dead, is it acceptable to not take photos at the crime scene as long as you document in the report that the phone didn't work?
YES/NO
NO
200
Yes/No
(It's a rainy scene) You arrive at a scene and find a shoe imprint in the mud. The Victim stated that the imprint was left there by the suspect. You tell the Victim that because it's rainy the evidence has already been destroyed and not worth collecting.
NO
200
Do you need to collect a control sample from touch DNA?
NO
200
Due to CA allowing possession of marijuana by CA citizens, it's ok for CSOs to transport and book in up to 8 oz of marijuana?
NO
200
How do you collect blood when it's dry?
Take it, Scrape it, Swab it.
300
What are the types of photographs you should take at a crime scene?
Overall
Medium
Close-up
300
How would you collect hair or fibers from the scene?
Use a bindle
300
When can you perform a buccal swab from a suspect?
Consent. Search warrant. Arrested for a felony. Or a suspect who was plead guilty or no-contest to a felony.
300
Describe what each photo is from left to right
Cartridge 
300
You are recovering a 10851 and found a large duffle bag with multiple pieces of mail and it belongs to multiple people. What would you do?
Book for evidence. (Why not found property?)
400
What is physical evidence?
±Any item that can be used to ascertain
±What in fact occurred
±Will assist in determining the truth about a fact in question
±Anything which may indicate a crime was committed or connect a person to a crime scene
400
Is there DNA on a hair follicle?
No- DNA is found only on the root.
400
Is there DNA in urine and feces?
There is not enough usable amount of DNA in urine or feces, unless blood is present.
400
What is in GSR?
Antimony, Barium, Lead
400
What type of packaging would you use for bloody shorts?
Paper! Paper! Paper!. Double bag.
500
What are the possible 9 steps in proceeding to a crime scene? (Remember Presentation of Evidence class)
1. Before driving to the scene, verify that the suspect is no longer on scene.
2. Proceed safely to the scene (Get your tail there!)
3. Determine if the victim has any injuries and need EMS. If so, update a dispatch and request a unit on scene. If no, proceed to the next step
3. Verify crime (What the heck happened?)
4. If the supect recently fled the area, Update dispatch (BOL)
6. Contain scene (if needed Use $1.50 worth of the orange tape.)
7. Locate and interview victim and witnesses
8. Collect all available information to write a report
9. Look, find and collect evidence
500
What is trace evidence good for? Is trace evidence direct or circumstantial evidence?
Getting class characteristics in order to show that someone was at a scene. It is circumstantial evidence showing the totality of the crime and most useful in a court setting.
500
What is the policy on submitting contact DNA?
No more than 2 individuals touched the object.
Firearms (excluded)
500
What evidence can you collect from cell phones?
How do you transport a cell phone collected from a scene?
Do you need a search warrant to review contents from a cell phone
Photographs, call logs, text messages.
Use a faraday bag, put phone on airplane mode.
Yes- if searching for evidence.
500
What is information is needed when booking in bicycles?
Make
Model
Serial #
Color
Gender
Speed
Tire Size
Type (Mtn, Racer, Etc)