Researchers train dog detectives so their testimony is admissible in courts.
Joel Shurkin, Contributor
Safer gun technology may one day be available to consumers.
Katharine Gammon, Contributor
The practice is controversial in the U.S.
Are we just becoming more civilized?
A statistical model shows several interesting properties of U.S. jury configurations.
Chris Gorski, Editor
Mathematicians are helping police find the locations where future crime is most likely to occur.
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