It is real - ironically realer than drug sniffing dogs because they can't use memory sniffing dogs until after they have probable cause since there is no law ag

It is real - ironically realer than drug sniffing dogs because they can't use memory sniffing dogs until after they have probable cause since there is no law against high density storage. So they aren't (mis)trained as four legged probable cause generators who respond more to police signaling than actual location.