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12 Questions

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Gun Shot Residue (GSR)

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Questions and Answers

What is the purpose of stretching the skin during sample collection for GSR analysis?

To prevent any GSR particles from being lost during collection (correct)

To make the skin more pliable for easier collection

To hide GSR particles within the folds of the skin

To make the adhesive tape stick better to the skin

Why is it important to cover the sampled area at least three times during GSR sample collection?

To hide GSR particles from detection

To speed up the sample collection process

To ensure consistency in interpretation of the results (correct)

To enhance the stickiness of the adhesive tape

What caution should be exercised when using chemical tests for GSR identification if a SEM is not available?

The results can be conclusive without further analysis

The results are always highly specific

None of the tests are specific, making interpretation challenging (correct)

Using these tests is unnecessary if a SEM is unavailable

What color will lead particles turn after conducting the Sodium Rhodizonate test?

Purple Signup and view all the answers

What is the purpose of placing the filter paper into a mildly alkaline condition after spotting with 880 ammonia solution?

To remove purple coloration due to lead Signup and view all the answers

Why is it not advisable to use dilute ammonia solution directly on the filter paper after the Sodium Rhodizonate test?

It can lead to difficulties in identifying color changes Signup and view all the answers

What are the possible forms of GSR particles as mentioned in the text?

Inorganic elements, organic compounds, and gases Signup and view all the answers

Where may GSR particles be found on a human body?

On the hands of the shooter, inside the body of the victim, and some distance away from the firing location Signup and view all the answers

What elements are present in the GSR due to the new primer composition used in India?

Lead, Antimony, Barium, and Aluminum Signup and view all the answers

Where may GSR particles be found in a firearm?

In the barrel and chamber of the weapon, as well as on the outside of the barrel Signup and view all the answers

Where have GSR particles been reported to be found?

In the excreta of the shooter Signup and view all the answers

What are some additional sources contributing to GSR particles according to the text?

Vaporized plain lead from the base of the bullet, copper and zinc particles from inside surface of cartridge case Signup and view all the answers

Gun Shot Residue (GSR)

Choose a study mode

Podcast

Questions and Answers

What is the purpose of stretching the skin during sample collection for GSR analysis?

Why is it important to cover the sampled area at least three times during GSR sample collection?

What caution should be exercised when using chemical tests for GSR identification if a SEM is not available?

What color will lead particles turn after conducting the Sodium Rhodizonate test?

What is the purpose of placing the filter paper into a mildly alkaline condition after spotting with 880 ammonia solution?

Why is it not advisable to use dilute ammonia solution directly on the filter paper after the Sodium Rhodizonate test?

What are the possible forms of GSR particles as mentioned in the text?

Where may GSR particles be found on a human body?

What elements are present in the GSR due to the new primer composition used in India?

Where may GSR particles be found in a firearm?

Where have GSR particles been reported to be found?

What are some additional sources contributing to GSR particles according to the text?

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