Forensic Science Exam Study Guide Questions And Answers.

Contact: size 1-4 mm; velocity of blood 25ft/sec (i.e. beating, stabbing) Low: size is more than 4 mm; velocity of blood 5ft/sec (i.e. blunt object impact or dripping) High: size is less than 1mm; velocity of blood 100ft/sec (i.e. gunshot wounds) {Ans: Identify the differences between a contact, low, and high velocity blood splatter}-human blood is always warm but not the blood in all the animals except mammals and birds -the percentages of the cell types in humans and other animals are different between each other -humans have a closed and complete blood vessels system, whereas some animals have open and/or incomplete blood systems -the efficiency of function of the human blood is very high, which can be compared to other animals {Ans: Identify the difference between human and animal blood}barrels, types of ammunition used, parallel lines, circular stippling {Ans: What characteristics help you tell guns apart?}-animal or human hair -fingerprints -soil or plant material (including pollen) -body fluids -fiber or debris from clothing -paint chips -broken glass -chemicals (such as drugs or explosives) {Ans: What are some examples of trace evidence?}to determine if an unknown substance found at a crime scene is a drug lacks