Forensics Final Project
By: Jack Christie
The Locard Principle states that anytime something comes into contact with another thing or an object there is evidence transferred in during the interaction.
- Some example of this principle are when a person is writing on paper, a person taking a drink out of a coffee mug and one person giving another person money
- These examples would transfer evidence like fingerprints being of the dollar, lead going onto the paper while writing and saliva being left of the coffee mug.
The Frye Standard is an acceptance test that determines whether or not evidence is amiss-able due based off of the scientific communities acceptance of the test.
- An example of the Frye Standard being used is when a lie detector is was amiss-sable in court but it is now is not longer accepted as evidence
- This is because people can make the lie detector mis identify things which makes the results change.
Daubert Ruling is a rule that sets the standards for the amount of evidence that an expert witness can testify for.
Testimonial evidence is evidence that is given by a witness of the crime.
Testimonial Evidence Facts
- This is based off of eyewitness accounts and was the main way people were convicted but now being used less
- Many things can affect who a person see the crime such as age, time of day, background and eyesight
Physical evidence is a type of evidence which can be tested and is collected at a crime scene.
Physical Evidence facts
- Physical evidence has recently been used to help convict people and to help free who were misconceived
- Some types of physical evidence are pieces of evidence like fingerprints, hair, blood found at the crime scene, tire tread, shoe marks and DNA evidence
- Physical evidence is usually analyzed in a crime lab and the this helps tie people to a crime
Class Evidence is a type of evidence that is not specific to one person but can help to identify a group of people
Class Evidence facts
- Some types of class evidence are tire tread, shoe marks, hair that does not have the root and fibers from clothes that are massed produced
Individual evidence is a type of evidence that can help to directly tie a person to a crime.
Individual evidence facts
- Individual evidence are types of evidence that can be related to only one person
- Some examples of this evidence are things like DNA or the fingerprints of the person who committed the crime.