Show:
Evidence?!?!
Specialists!?!?
LOTS AND LOTS OF FIBRES
INVESTIGATIONS TEAM!
SO MUCH HAIR...
100
What is Evidence?

The information provided that shows something as being "True" or "valid"

100
Name a piece of evidence that we use to determine a suspect

Glass, Hair, Prints, etc. 

100
What is the definition of fibre?

Strands of natural materials 

100
What does CSI stand for?

Crime Scene Investigator

100

True or false,

Hair isn't that important in a crime scene

False 

200

What is this? 

Fingerprints

200

What does a forensic biologist do?

Someone who reviews the marks left by a suspect to determine its origin.

200

Name one of the types of fibres?

Human hair, Cotton, Wool, Synthetic

200

What is one role of the uniformed officer when they arrive on the crime scene? 

Evacuate, Isolate, Don't contaminate (EIDC)

200
True or False,


The trace elements within someone's hair are ALWAYS the same 

False, Everyone has unique trace elements within their hair based on their diet, environment. 

300

What is this?

Hair follicle
300

What is the Chain of Possession?

Transferring evidence to different investigators to ensure that no one tampers with the materials. 

300
What do we use to look at fibres?

Microscopes

300

True or false,
Chemists, biologists are always at the crime scene to analyse evidence

False

300
How do we differentiate types of hair at a crime scene?

The cross - section and shape of the hair follicles present

400

What is this?

Blood splatter 
400
What does a drug chemist do to help a crime scene investigation?

Nothing at the scene but at the lab, they look at the chemical components of the drugs to determine the manufacturer, quality, purity etc. 

400

What is the difference between Cotton and Hair in the fibre structure?

Cotton = Rough Surface with altering thickness

Hair = Overlapping scales (Rough + Scaly surface)

400

Why do CSI officers use a ruler when taking photos?

To take measurements of someone's unique prints based on the size of a person. 

400

How can we determine what animal corresponds to a specific hair?

Look at the pattern of overlapping scales

500

Why do we need evidence?

Helps us determine the suspect for a crime.

500

What is the role of a Toxicologist?

These specialists review the liquids components to determine the contents, potentially tying them to certain individuals in the case of metabolites, drugs etc.
500

True or false,
Fibres are considered "True evidence" when analysing a crime scene

False,
These are forms of "Circumstantial Evidence" because they don't provide definitive proof that the suspect committed a crime.

500

What is an entomologist?

An entomologist is someone who studies insercts. In the case of the crime scene, they analyse maggots to determine how long the body may have potentially been decomposing/dead for. 

500

Name the three layers of the hair:

- Central core: Medulla
- Coloured Layer: Cortex

- Outer layer: Cuticle