Just watching a short video on BBC News app about a sniffer dog and had a random thought.
When, these brilliant dogs 'retire' they get removed, usual with serving officers or people connected to the services they used to work for.
What happens when they go for a walk in the park/street? Do the dogs still try looking for the 'target' substances and what would the dog's owner do if their dog started playing a lot of attention to some random stranger?
I imagine the dogs are so well trained that they only 'work' when given certain commands, so this is unlikely to happen, but just pondering....