Author Question: Despite some shortcomings, experiments remain the most effective means of gathering data. ... (Read 68 times)

fox

  • Hero Member
  • *****
  • Posts: 540
Despite some shortcomings, experiments remain the most effective means of gathering data.
 
  Indicate whether the statement is true or false

Question 2

Name and briefly describe two popular approaches for collecting gunshot residue from a suspect's hands. What is the logical next step in analysis for these collected samples?
 
  What will be an ideal response?


Moriaki

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

F

Answer to Question 2

Answer should include points such as the following:
 The most popular approach to collecting gunshot residues from a shooter's hands involves applying adhesive tape or adhesive to the hand's surface to remove any adhering residue particles.
 Another approach is to remove any residues present by swabbing both the firing and nonfiring hands with cotton that has been moistened with 5 percent nitric acid. The front and back of each hand are separately swabbed. All four swabs, along with a moistened control, are then forwarded to the crime laboratory for analysis.
The most specific analysis method for these collected samples is by SEM coupled with an X-ray analyzer to determine elemental components of the residue.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Moriaki

  • Sr. Member
  • ****
  • Posts: 341

 

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

For a complete list of videos, visit our video library