BioMed test I

Where is the link method used?

Large, small, indoor, and outdoor scenes

Line method

Used on large, outdoor crime scenes

Grid Method

Large, outdoor crime scenes

Zone Method

Used on crime scenes that are compromised by readily definable zones (houses, buildings)

Spiral method

Used on crime scenes with physical barriers

Three signs of lying

Respiration rate, Heart rate, skin conductivity

Heart rate

measure of cardiac activity, usually expressed in BPM

Respiration rate

how many breaths you take in a minute

Skin conduct activity

 the amount of sweat that is produced.

Why is it important to establish baseline data when conducting a polygraph test?

It provides a baseline of the vital signs for the investigator that they can reference back to at any time.

Independent variable

a variable that stands alone and isn't changed by the other variables you are trying to measure

Dependent variable

something that depends on other factors

Trace evidence

Trace evidence is evidence so small in size it can be transferred/make contact between two surfaces. 

Dr. Edmond Locard’s hypothesis

A perpetrator of a crime will bring something to the crime and leave something after committing the crime, and both can be used as forensic evidence.

Name the three layers of the hair, and where they are located in relation to each other.

The cuticle, the cortex and the medulla. (Top to deepest.)\\

What are the three major patterns found in fingerprints?

Whirls, loops, and ridges.

What are the tiny fingerprint ridge details called?

Bifurcation