HOSA Forensic Science: Evidence Collection and Death Investigation 2

Core

Area in the center of whorl and loop fingerprint patterns

Whorl

The central papillary ridges of the hand make at least one complete turn. There are at least two deltas in this pattern.

Arch

The papillary ridges rise to form a wave from one side to another. There are no deltas in this pattern.

Delta

An area on a fingerprint that looks like a Greek delta (an upside down Y). Where two or more lines diverge.

Fluorescene

Property of producing light when acted on by radiant energy

Chemiluminescence

Process where light is emitted by the product of a chemical reaction

Dactyloscopy

The study of fingerprints

Minutiae

In the description of fingerprint, ridge characteristics

Cuticle

Tough, clear outer coloring covering of the hair shaft

Medulla

Spongy, anterior core of the hair shaft that gives it flexibility; appear as a canal in the hair shaft

Cortex

Middle of the hair shaft that provides strength, comprises most of hair mass.

Cheliloscopy

Study of lip prints

Bore

Interior Diameter of a gun barrel

Gauge

A measure of the bore size and the size of the shotgun shell for the gun

Striae

Parallel set of scratches on a bullet caused by the unique markings on the bore of a rifle weapon

Head Stamp

Numerals, letters, and symbols on the cartridge showing manufacturer, caliber and code

Blind Forgery

A forgery made without a model of the signature and writing being forged

Stimulated Forgery

A forgery made by copying a genuine signature

Traced Forgery

A forgery made by tracing a genuine signature

The inferior vena cava or pulmonary artereis

Where should blood be collected from for postmortem analysis?

Detects heavy metals and their timeline of accumulation

What information can be found from toxicologically testing hair?

Glycogen

Chemical not reformed after death that leads to rigor mortis?

Yawing

Bullet entering the body sideways

Primary dentition

The 20 baby teeth

Permanent Dentition

The 32 adult teeth

Avulsed

Expelled or removed

AFIS

Automated Fingerprint Identification System

Male Skull

Square eye sockets
Square mandible
Thick larger upper brow ridge

Female Skull

Rounded eye sockets
More rounded mandible
Thin and small upper brow ridge

CODIS

Combined DNA Index System

Cerebral Edema

Prescence of a large amount of water in the spaces of the brain

Pulmonary Edema

An abnormal buildup of fluid in the air sacs of the lungs

Hypoxemia

Abnormally low concentrations of oxygen in the blood

Asystole

Heart stops beating

Sepsis

Condition in which the infection enters the blood stream and spreads to other parts of the body

Hypovolemic shock

Severe blood and fluid loss make the heart unable to pump enough blood to the body

Cardiac Tamponade

Condition where the sac that encases your heart fills with fluids and puts pressure on the heart

Gunshot exit wounds

Slit Exit wounds are caused by....