Trace Evidence
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People leave pieces of ___ or take something of ____ ____ with them. Those small pieces of evidence are called ___ ____.
Themselves crime scene trace evidence
Trace evidence is often ____ (class or individual) evidence?
Class
A regular microscope, like the ones we used in high school, is officially called _____.
Compound binocular microscopes
Microscopes used to compare two pieces of evidence side by side is called _____
comparison microscopes
Microscopes used to make objects appear sharper and their colors clearer is called a ___.
Polarized light microscopes
Microscopes that zoom up to 100 000 times the normal size are called_____.
scanning electron microscopes
Microscopes that make objects appear 3D are called ____.
Stereomicroscopes
What is microspectrophotometry?
This device makes us see the extra color of an object or material by transmitting light and analyzing how the light is absorbed or transmitted.
Microspectophotometry is great for ___, ___ and ______.
paint chips, colored fibers, and dyed/treated hair.
What does infrared spectophotometry do?
it sends infrared lights on an object to show its true colors
What does neutron activation analysis?
measures radiance emission.
What is the downside of neutron activation analysis?
Needs a nuclear reactor, which is very expensive.
Neutron activation analysis is good to identify certain things such as ___, ___, ___, and ____.
paint soil hair metal
Name another method to analyze trace evidence?
X-rays
What is the name of the part of the hai that is a pocket of specialized cells?
follicle
Every hair as a ___ root and a _________, which is the showing part of the hair.
living non-living shaft
What is the name of the outside layer of the hair?
Cuticle
What is the name of the middle, thick part of the hair?
cortex
What is the name of the solid line in the middle of the hair?
Medulla
The cuticle is a ___, ____ cell.
Dead transparent
What is the name of the cuticle that looks like a crown? This one is mostly found in ______.
coronal rodents
What is the name of the cuticle that looks like a flower? This one is mostly found in _____.
Spinous cats
What is the name of the cuticle that is superimpositioned? This one is mostly found in_____.
Imbricate humans and other animals
Name three types of hair humans have?
facial, limb and pubic