Forensics Midterm For Mcnair Academic

Front 1

The Seven S's of Crime -Scene Investigation

Back 1

1)Securing the scene
2)separating the witnesses
3)scanning the scene *looking for primary or secondary crime scene*
4)seeing the scene
5)sketching
6)searching for evidence
7)securing and collecting evidence

Front 2

How many parts does hair consist of and what are they?

Back 2

two parts: a follicle and shaft

Front 3

What is the follicle?

Back 3

it is a club-shaped structure in the skin

Front 4

What is the structure of hair?
*hint pencil*

Back 4

The cuticles,cortex, and Medulla.

Front 5

What are some types of evidence?

Back 5

1)Class evidence
2)individual
3) trace

Front 6

The life cycle of hair. What are the three stages that hair goes through? *hint ACT*
Which is the most active growth period?

Back 6

Anagen *most active*
Telogen*hair turns grey*
Catagen

Front 7

What are the two main types of fiber?

Back 7

Natural and Synthetic (Manmade)

Front 8

What are the three finger print patterns?

Back 8

Arches (least popular)
whorls
loops (most popular)

Front 9

What are the three types of cells in blood?

Back 9

red blood cells,white blood cells,and platelets(aid in clotting) . suspended in plasma

Front 10

Why are blood cells used for for DNA profiling?

Back 10

Because they contain a nucleus

Front 11

What are the types of blood?

Back 11

Type A
Type B
Type AB
Type O (lack both a and b protein)

Front 12

what is the Antigen-Antibody response?

Back 12

When a foreign invader is recognized by the immune system an attack is launched against the invader. Two attacks.
1)Lymphocyte specify antibodies against protein attach to invader
2)phagocytes white blood cells that engulf invader

Front 13

What is Agglutination?

Back 13

clumping of red blood cells

Front 14

How can you prove blood is human?

Back 14

Use a ELISA test. (enzyme linked immunosorbent assay)
antibody-protein reaction

Front 15

What are the types of finger prints?

Back 15

1) patent ( visible prints by eg. ink)
2) plastic (indentations in a soft material)
3) latent (hidden prints by transfer of oils)

Front 16

What are the types of weave patterns?

Back 16

plain
basket
satin
twill
leno

Front 17

How do you approach a crime scene?

Back 17

treat all deaths as homicides
do the types of wounds on victim match weapon employed
can wounds be self inflicted
establish profile of victim from interviews
evaluate behavior of victim before event
Evaluate behavior of suspects before events
recontrust event

Front 18

what is forensics engineering?

Back 18

Recontrusting a crime scene
is the investigation of materials, products, structures or components that fail or do not operate or function as intended, causing personal injury or damage to property.

Front 19

what is forensic anthropology?

Back 19

Studying a victims bones!
.is the application of the science of anthropology in a legal setting—most often physical anthropology and human biology are used in criminal cases (FBI, CIA and military) where the victim's remains are in the advanced stages of decomposition.

Front 20

what is a forensic odontologists ?

Back 20

study teeth

Front 21

paul ekman

Back 21

discovered expression are biologically programmed

Front 22

alfred swayne taylor and thomas stevenson

Back 22

co -authored principles and practice of medical jurisprudence. Contained a chapter on hair related to forensics

Front 23

Balthazard and lambert

Back 23

published a comprehensive study of hair titled the hair of man and animals including microscopic studies of hair from animals

Front 24

smiling gus winkler

Back 24

thought he could hide from police by surgically altering his fingertips and was gunned down by an unknown assailant

Front 25

sir archibald hershey

Back 25

started fingerprint collection 1865