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Technology

Forensic Evidence and Probable Cause

Quick fact

In 1987, the U.S. Supreme Court ruled that a DNA match alone can establish probable cause, even without eyewitnesses. This marked a turning point where scientific evidence became legally sufficient to justify a search or arrest.

Why this is interesting

A single strand of hair can put a suspect behind bars—or set them free. How does a judge decide whether that strand is enough to justify an arrest?