Crime scene sketches
Do sketches need a legend?
Yes
What is the complementary base pairing rule?
Adenine and Thymine, Cytosine and Guanine
What are the different classes of fingerprints?
Arch, Loop and Whorl
What is a process used by criminals to make, alter, or falsify a person's signature or a document with the intent to deceive another person?
Forgery
What makes up blood?
Red blood cells, white blood cells, plasma and platelets
Does an investigator have to sketch to scale?
Yes
What is DNA's shape?
Double Helix
What Australian mammal has fingerprints (other than primates)?
Koala
What is the handwriting sample compared to?
A suspect's handwriting
What are the types of blood evidence?
Rough and Finished
What does DNA stand for?
Deoxyribonucleic Acid
What are types of arches?
Plain arch and Tented arch
What tools are used for initial comparisons?
The naked eye, a handheld lens, or microscope
What are the small drops of blood that break off from the parent spatter called?
Satellite spatters
What has to be taken before the investigator starts sketching?
Photographs
What are the four types of nitrogen bases?
Guanine, cytosine, adenine and thymine
What are the different types of loops?
Radial loop and Ulnar loop
What are the forgery types?
Freehand simulation, tracing and disguised writing
What are the different types of bloodstain patterns?
Transfer/contact bloodstains, projected bloodstains and passive bloodstains
What does it need to include?
Date and time information, arrival information, scene description, victim description, crime scene members present
When making a DNA profile, what do you use to separate the pieces?
Gel Electrophoresis Machine
What are the types of whorls?
Plain whorl, central pocket whorl, double loop whorl and accidental
What is used to evaluate the speed, pressure and rhythm of a person's signature, and is able to easily detect differences and recognize forgeries?
What are passive bloodstains?
Patterns created from the force of gravity