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46 terms

Forensic Notes

STUDY
PLAY
Forensic Science
the use of scientific knowledge and methods to answer legal questions
Burglary
breaking into a house or building to steal an object
Observing
using one or more of your senses to gather information
Evidence
something that can be presented in a trial to make a point during a trial
Inferring
offering a reasoned opinion based on observations and experience
Predicting
stating an opinion about what will happen in the future
Hypothesis
a possible explanation for a set of observations
Crime Scene Investigator (CSI)
are trained to record, collect, and test evidence from a crime scene
Medical Examiners
when a sudden or suspicious death occurs, these people observe the body
Autopsy
a detailed exam of a dead body
Sketch
a rough drawing that is done quickly and without much detail
Scale
the ratio of the model to the actual size of the object
Communicating
when people share their ideas with other team members
Contamination
the addition of unwanted material to an object
Chain of custody
a written record of who had control over a piece of evidence from the time it was collected
A brush, powder and tape
for collecting fingerprints
A hand lens
for a closer view of a small objects
Tweezers and forceps
for picking up small objects
Swabs
for collecting evidence from a victim
A small vacuum cleaner (with a filter and screen)
for sweeping a rug or a cars interior
A screwdriver
for removing a doorknob or a door to be sent to the crime lab
Trace Evidence
tiny amounts of physical evidence that are transferred at a crime scene
To collect trace evidence
investigators need to know where to look. They must also have the right tools
Five major types of of trace evidence
hair, fibers, paint, glass and soil
Concentration
the amount of a substance in a given mass or volume of a mixture
Eyewitness
a person who directly observers an event
Direct Evidence
this evidence can be used in court to prove a fact
Modus Operandi
means "mode of operation" in Latin. A persons MO describes the way he or she approaches a task
Surveillance Cameras
the cameras in banks, stores and other public places
Physical Evidence
any object that can be used prove a fact is true
Hemoglobin
the molecule that distributes oxygen to the body
Luminol
can find blood when sprayed on a place that contains blood
Antibodies
molecules that bind to marker molecules
Ridges
series of raised lines
Three typical patterns of ridge lines
whorls loops and arches
Visible Print
a print that can be seen
Plastic Print
happen when a soft material is touched
Latent Print
when sweat or oil is transferred to another object and is hidden
DNA (Deoxyribonucleic Acid)
carries characteristics from parents to offspring
Proteins
molecules that your body uses to build tissues and organs
Gene
a section of DNA that contains information your cells need to make protein
DNA Profile
A distinctive pattern of DNA fragments
Replication
how a DNA molecule makes a copy of itself
Probability
a measure of the chance that an event will happen
Cold Case
old, unsolved cases
Endangered Species
a species whose numbers are so small that the species is at risk of extinction