Being a Witness/Memory and Attention
Eyewitnesses evidence is 100% true
No
How did people identify people before dna
Fingerprints
Who shows up first to a crime scene
The police
What can dna be found in
Blood,saliva,hair
If you see the attackers face you can identify them
False
Who invented dna testing
Sir Alec Jeffreys
What’s the first thing you do when you get to a scene
Secure the scene
How can you find dna on a victim?
Swabbing the victims skin
How many items can people usually remember at a time
4
When did they first start using physical evidence in courts
1780
What should you wear before you investigate
Gloves
How long does Saliva stay on human skin
4 days
Higher levels of stress can cause you to misremember
Yes
When was the first time that someone found out how to investigate poisoning.
1800
Who’s the person that makes sketches of the crime scene
composite artists
What outside factors could tamper dna evidence
Sunlight,moisture,and bacteria
Can the eyewitness be influenced by police without them knowing it
Yes
How did they identify Julius Caesar’s friend was one of his assassins
Caesar called his name before his death
How is crime scene evidence handled?
take photographs and physical measurements of the scene
What do are the multiple blood types that exist
A,AB,B,O