The East German Stasi kept thousands of “scent jars” so they could use dogs to track specific citizens. I’m not sure how effective DNA surveillance would be in

The East German Stasi kept thousands of “scent jars” so they could use dogs to track specific citizens. I’m not sure how effective DNA surveillance would be in this tracking role, but one could imagine future improvements in the technology that make it more feasible. https://www.spymuseum.org/exhibition-experiences/about-the-collection/collection-highlights/stasi-scent-jars/ https://www.spymuseum.org/exhibition-experiences/about-the-c...