Kat Janczur spent years training dogs to sniff out drugs and explosives. Today, she and her canine companions have a very different quarry: Japanese knotweed.
Trotting through the woods, Fenix could be any other dog out enjoying the late-autumn sunshine. But, as we turn into a large scrubby patch of land, Kat Janczur takes out a khaki harness and Fenix’s demeanour changes: the apparel signifies that work is about to begin. Kat gives the Dutch shepherd his…