How Police Dogs Work
![How Police Dogs Work](https://www.podcastworld.io/podcast-images/stuff-you-should-know-ptoo9p5s.webp)
Police dogs have been used since the 19th century - one WWI German defector became a major movie star. But in the US the post-9/11 era has seen a K9 unit boom and questions and concerns have increased as well.
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