5 Weird facts about dogs

Fact#2

Detection dogs, trained to sniff out a wide variety of things from bombs to drugs to cadavers, are an invaluable part of any law enforcement team. But there has been a growing outcry against K-9 units, particularly drug dogs, who have been shown in many cases to give “false positive” readings, or react as though they smelled drugs although none are present, as often as 80 percent of the time.

Fact source: Link

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