forensic science

buccal swab

Used for DNA testing by swabbing the inside of the mouth.

deductive reasoning

Deriving a conclusion from the facts.

mass murderer

A person who kills several people typically at the same time and location.

visionary serial killer

Believes a person or entity is commanding them to kill.

enhanced cognitive interview techniques

Examples include rapport building, transfer of control, and focused retrieval.

Jacob’s Syndrome

A male who is born with an extra Y chromosome.

98 percent

The proportion of DNA samples taken from blood.

markers

Points in DNA that repeat short DNA sequences again and again.

natural fibers

Examples include cotton, wool, and silk.

Locard’s Principle of Exchange

When two objects come together, a transfer of evidences takes place.

securing the scene

Stage where safety is prioritized over preservation of evidence.

arterial spray

Blood pattern produced when blood is forcefully ejected from a source.

qualitative data

Subjective, descriptive data such as colour and shape.

organized killer

A killer who may suffer from antisocial personality disorder.

wipe blood pattern

Created when an object moves through an existing blood pattern.

fibers

Can be used to link a suspect, victim, and crime scene.

perception

The brain's interpretation of our sensory observation.

short-term memory

Information stored in our brain for a short period of time.

objective data

Data that we can observe with our senses.

seeing the scene

Stage where photos must be taken with and without a measured ruler.

criminal personality profile

Helps create a personality composite of the suspect.

class evidence

Narrows the identity of a suspect to a group of people or things.

absorbent patterns

Can destroy evidence by absorbing blood evidence.

direct evidence

Firsthand observation such as video or eyewitness accounts.