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Nathan Walstrom
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Oct 27, 2026
Rapid City Police Department Forensic Chemist Nathan Walstrom
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6:22LauraHOST
So it's like, have you ever had like a really unexpected or shocking result?
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6:26Nathan WalstromGUEST
I think probably the most shocking one that I ever got was a sample of a boba tea, a drink.
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6:32Nathan WalstromGUEST
And we were checking to see if somebody had adulterated it with a substance that would cause somebody to be knocked out.
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6:38Nathan WalstromGUEST
And it was just one of those, I wasn't really expecting that sample to come across my desk.
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10:52LauraHOST
Can you think of a situation where you had a really complex lab result that you had to explain to a jury and how you kind of work through in your mind how you're going to present those results to the people?