How Can Police Tell If Somebody Has Been Handling Radioactive Materials?

FBI investigators and homeland security officers have long relied on one test to determine if suspects have touched radioactive materials—the old pee-in-the-cup trick. The only problem is, the human body processes fluids so fast that it's only useful if the person had the stuff in hand within the last week. But a new test works even if the subject hasn't touched anything radioactive in a year. It could help out big time when it comes to tracking down potential smugglers and terrorists. Watch the video below to learn about it.

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Written by Curiosity Staff May 23, 2017