Forensic lab final

type #4 fingerprinting

rolling print

type #14 fingerprints

taking all 4 prints at the same time

no rolling

which fingerprint method has highest sequence accuracy

type #14

what type of kit is used to record deformed fingerprints

postmorten or spoon

what are “missing fingers” in fingerprinting

fingers physically present but unable to be recorded because of injury

types of special circumstances in prints

deformed/missing
fully amputated
tip-amputated
extra fingers
scarred fingers
worn fingerprints

what is the techniwue used for worn prints

“milking the finger”

what is the technique for dealing with extra fingers in printing?

record all fingers except the extra one

Male skull

Larger cranial mass

More pronounced zygomatic bone

mastoid process is wide and robust

brow ridge is more pronounced

More pronounced occipital bone

Square mandible (jaw)

Female skull

Smaller cranial mass

Smoother and smaller zygomatic bone

Mastoid process is less pronounced

Less pronounced brow ridge

Smoother occipital

Smoother mandible

male pelvis

Small Sciatic notch

Narrower pelvis

Smaller pubic arch 60-70°

Deeper pelvic cavity

Higher iliac crest

female pelvis

Wide sciatic notch >90°

Wide pelvis

Larger arch 80-90°

Shallow pelvic cavity

Short iliac crest

1

ridge ending

2

bifurcation

3

island

4

dot

5

bridge

6

spur

7

enclosure

8

double bifurcation

9

delta

10

trifurcation

what quality factor (q) is pure?

greater than 1.7

what is an unpure quality (q) factor

less than 1.7

Enzyme: Cuts at GAATTC
DNA Sequence:
ATGAATTCTCAATTACCTGAATTC

3 fragments

Enzyme: Cuts at AAGCTT

Sequence:
AAGCTTAGGTAAGCTTCCAAGCTT

4 fragments

Enzyme: Cuts at GGCC

Sequence:
GGCCATGGGCCATAGGCCTTGGCC

5 fragments

10 physical evidence for DNA

hair folicle
toothbrush
nails
urine
clothes
teeth
bone
semen
skin
sweat

what type of brush is used for printing

magna brush