science test

Question 1

What does BPA stand for

Answer 1

Bloodstain pattern analysis

Question 2

What can an investigaotr learn from a blood spatter?

Answer 2

type of velocity and weapon
number of blows
left or right handed
position of movement of victim or assailant
which wounds were created first
type of injuries
how long ago the crime was committed
whether death was immediate or delayed

Question 3

Conclusion about blood spatter

Answer 3

the greater the heigh the bigger the diameter

Question 4

SPatter

Answer 4

a bloodstain created by the application of force to the area of which the blood originated

Question 5

Origin

Answer 5

the place where the blood spatter came from

Question 6

angle of impact

Answer 6

the angle which a blood droplet strikes a surface

Question 7

parent drop

Answer 7

the blood droplet where the satellite spatter originates from

Question 8

satellite spatters:

Answer 8

not attached to the parent drop, small drops of blood that breakaway from the parent spatter when the blood droplet hits the surface

Question 9

spines

Answer 9

attached to the parent drop, the pointed edges of a stain that radiates out from a spatter

Question 10

Passive blood stains

Answer 10

patterns that are created by gravity

drops, series of drops or pools of blood

Question 11

projected bloodstains:

Answer 11

patterns that occur when a force is applied to the source of the blood

Question 12

transfered or contact blood stains:

Answer 12

these are created when a wet bloody object comes into contact wiht a target surface

Question 13

Two things chormaotgraphy is used for

Answer 13

blood and ink analysis

Question 14

RF

Answer 14

relative mobility factor

Question 15

DNA Profiling

Answer 15

gelelectrophoresis

Question 16

what is forensic analysisty= used for

Answer 16

blood
skin
hair
smeen
bodily fluids

Question 17

5 classes of controlled substances

Answer 17

narcotics
depressant
steriosd
hallucigen
stimulant

Question 18

what is lochards exchange princliple and example

Answer 18

every contact leaves a trace example hair falling out or touching something

Question 19

satellite spatters

Answer 19

small drops of blood that brak off when the paretn drop hits the sirface

Question 20

spatter

Answer 20

the parent drop where the sattelite spatter originates

Question 21

spines

Answer 21

radiate out from the spatter

Question 22

Latenet finger print

Answer 22

fingerprints that deposit oil and sweat from pores on friction ridges

Question 23

protocol for fingerprint printing

Answer 23

dust
remove excess dust
tape on print
put on card

Question 24

Ridge charachterisitcs

Answer 24

LOOP WHOLR AND ARCH

Question 25

what are the main bloood groups

Answer 25

a b ab o

Question 26

what are the compontes of blood

Answer 26

Plasma white blood cells red blood cells platelets

Question 27

what detrermines your blood group

Answer 27

genes

Question 28

Hair structure

Answer 28

``` Cuticle Cortez Medulla Cortex Cuticle ```

Question 29

What do forensic anthropologists specialise in?

Answer 29

In the changes and variation of human remains

Question 30

Crime scene definition

Answer 30

Any physical location in which a crime has occurred or is suspected of having occurred

Question 31

Primary crime scene definition

Answer 31

The original location of a crime or accident

Question 32

Secondary crime scene definition

Answer 32

An alternate location where additional evidence my be found

Question 33

Suspect

Answer 33

Person though to be capable of committing a crime scene

Question 34

Accomplice

Answer 34

A second person associated with the crime

Question 35

Alibi

Answer 35

Statement of where a suspect was at the time of the crime

Question 36

Testimonial evidence

Answer 36

Testimonial evidence would be any witnesses accounts of an incident or crime

Question 37

Physical evidence

Answer 37

Physical evidence would refer to any material Items that are present at the crime scene or the victims

Question 38

Trace evidence

Answer 38

Trace evidence refers to evidence that is found at the crime at a crime scene in small but measurable amounts

Question 39

Red blood cells

Answer 39

Carry oxygen to our cells

Question 40

White blood cells

Answer 40

Destroy pathogens

Question 41

Plasma

Answer 41

Clotting agent and provides nutrients

Question 42

Platelets

Answer 42

Clotting agent

Question 43

Bloood transfusions

Answer 43

Rh + only gives +- | But Rh- can only give -

Question 44

How is blood detected at a crime scene

Answer 44

Uv light Luminal Presumptive testing

Question 45

Crime scene protocol

Answer 45

Interview Examine Documents Pro esss

Question 46

What does evidences tell us

Answer 46

Pieces that they connoted a crime Gives detectives with leads Links suspect with crime

Question 47

Police officers

Answer 47

Arrive first, secure crime scene

Question 48

Csi unit

Answer 48

Documents scene in detail

Question 49

District attorneys

Answer 49

Warrants

Question 50

Detectives

Answer 50

Interview witnesses