Forensics Week 10

Question 1

What are friction ridges

Answer 1

evolutionary adaptation to grasping and climbing

Question 2

What are the three levels of ID

Answer 2

General patterns; anatomical source
Individual ridge paths; deviation, size, shape
Individual ridge structure; pores, ridge shape

Question 3

What levels of ID can individualize

Answer 3

only 2 and 3

Question 4

What is the minimum number of points for ID in australia

Answer 4

There is none

Question 5

What are patent fingerprints

Answer 5

immediately visable to the naked eye

Question 6

What are latent fingerprints

Answer 6

not able to be seen by the naked eye

Question 7

What are 3 ways to visualise fingerprints

Answer 7

Powder, Alternating light sources, developing agents

Question 8

What is hair mainly made up of

Answer 8

keratin

Question 9

Where it eh pigment located in brown hair

Answer 9

near cuticle

Question 10

Where is the pigment located in red hair

Answer 10

near the medulla

Question 11

Where is the pigment located in blonde hair

Answer 11

There is almost none

Question 12

What can forcibly removed hair sometimes have attached

Answer 12

skin tags

Question 13

how to idetify facial hair

Answer 13

Thick and sometimes doubled medulla with irregular cross section

Question 14

How to identify pubic hair

Answer 14

Wide variation in diameter with buckling along length and broad continous medulla

Question 15

Do hair and nails keep growing after you die

Answer 15

No, dehydration shrinks the skin

Question 16

What two substances out compete oxygen for haemoglobin binding

Answer 16

Carbon monoxide and cyanide

Question 17

What coloured in cyanide poisoned blood

Answer 17

Bright red

Question 18

What cyanois

Answer 18

Blue tinge to the skin after Carbon dioxide induced suffocation

Question 19

What are five ways to trace blood at a crime scene

Answer 19

Location in three dimensions
Location of other objects
Method of deposition
Time
Post-depositional disturbance

Question 20

What does medium velocity impact splatter result from

Answer 20

Beating or a stabbing

Question 21

What does high velocity impact splatter result from

Answer 21

Gunshot or industrial machinery

Question 22

What are 6 patterns that can occur during body deposition

Answer 22

Skeletonised stain
Fly spots
Drip pattern
Wipe
Swipe
Transfer/Contact

Question 23

What turns pink in the presence of blood

Answer 23

Kastle-Meyer test (Small testing)

Question 24

What turns blue in the presence of blood

Answer 24

Luminol

Question 25

What counts as body fluid

Answer 25

substance of any biological origin

Question 26

Who founded toxicoogy

Answer 26

Paracelsus

Question 27

What is elemental poisoning

Answer 27

Easy to detect as it does not break down in the body

Question 28

Forensic toxicology plays a role in

Answer 28

Cause of death
Illegal drug use
Minor drug infractions

Question 29

What is forensic profiling

Answer 29

characterising of a criminal by behavioural, mental or scientific means

Question 30

Who first introduced the concept of DNA profiling

Answer 30

Alec Jefferys

Question 31

What do STR stand for

Answer 31

Short Tandem Repeats (used in DNA profiling)

Question 32

If DNA is matched at the scene, what does it mean

Answer 32

The match MAY have contributed

Question 33

What DNA sample is small, what can be done

Answer 33

PCR