Fingerprints
The sticky substance used to lift fingerprints
What is sticky tape?
Hair is indestructible, apart from doing this to it.
What is burning?
Colour, shape and size of grain.
What are the physical characteristics of a soil sample?
A, B, AB and O
What are blood types?
The pinchy tools used to handle evidence at crime scenes so it is not contaminated.
What are forceps/tweezers?
The fine lines on a fingerprint
What are ridges?
For this reason, hair and fibres are often missed by criminals trying to remove evidence from a crime scene.
What is small?
The chemical substance you add to a soil sample which allows you to identify its pH level.
What is universal indicator?
Passive, Projected, Transfer
What are the 3 types of blood stain patterns?
The dish used for bathing hair samples.
What is a petri dish?
These are the 4 categories of fingerprints
What are Loop, Arch, Whorl and Composite?
Length, colour, ethnicity, curly/wavy/straight
What are some characteristics of hair?
The dark, organic material in soil when plant and animal matter decays
What is humus?
They tell us the height, angle, amount and direction
What are blood droplets?/What are bloodstain patterns?
The single greatest cause of wrongful convictions in court.
What is eyewitness testimony/statement?
The fine black powder used when dusting for fingerprints.
What is Manganese Oxide?
The 2 chemicals used in preparing hair samples before placing on a microscope.
What is hydrogen peroxide and acetone?
The 4 components of soil.
What are mineral matter, organic matter, air and water?
These are added to a blood sample to determine the blood type
What are anti-serums?
The 4 parts of a hair.
What is the bulb/root, medulla, cortex and cuticle?