Gunshot Residue Sampling Process

The video tutorial explains how to collect gunshot residue from a subject's hands using a GSR 600 sampling card. It covers the swiping and dabbing techniques, emphasizing the importance of avoiding contamination. The tutorial provides a step-by-step demonstration of the process, including the use of the sampling card and the final steps to prepare the sample for analysis.

Where is gunshot residue most likely to be concentrated on a person's hand?

• On the back of the hand

• On the wrist

• On the palm

• On the trigger finger and thumb

What should you inform the subject about before swiping their hands?

• Strong pressure will be applied

• No pressure will be applied

• The process will be painless

• The process will be quick

What is the first step in using the GSR sampling card?

• Swipe the subject's hand

• Dab the adhesive pad

• Remove the card from its protective bag

• Remove the adhesive pad

What should you avoid doing to prevent contamination of the sample?

• Using a wet sampling card

• Swiping too quickly

• Using too much pressure

• Touching the sample paper with your hands

Which part of the hand should be swiped first with the sample paper?

• The palm

• The back of the hand

• The wrist

• The area between the index finger and thumb

Why is it important to ensure the subject's hands are not wet during sampling?

• To prevent discomfort

• To avoid sample contamination

• To make the process faster

• To ensure the adhesive pad sticks

What is the purpose of the adhesive pad in the sampling process?

• To clean the hand

• To dab the swiped areas

• To dry the hand

• To swipe the hand

After swiping, what is the next step in the sampling process?

• Swipe the hand again

• Dab the same areas with the adhesive pad

• Analyze the sample

• Label the sample

What should be done after collecting the sample to prepare it for analysis?

• Wash the sample

• Pull the red tab to extend the label

• Send it immediately to the lab

• Store it in a cool place

What is the final step after securing the sample with the label?

• Re-swipe the hand

• Discard the sample

• Store the sample

• Analyze the sample with the xcat