If you see a dog wearing a coat, and working at the airport, you should not go up to it and try to pat it. If you do this, you will distract the dog. It is trying to do an important job.

These children are patting a quarantine detector dog, but the dog is not working. It is at a field day, and the handler is telling them what the dog does for a job.

You must always ask the handler before you pat a dog wearing a special coat. The coat means that the dog is a working dog, with a special job to do.

When the dogs get old, they will usually go home to live with their handler. While they are working, they live in a kennel with the other beagles. It is best that they don't live in a normal house. Can you think why?

Not all detector dogs are beagles, but the ones that work around the public usually are, in most countries in the world.

This dog is also a detector dog, but it is not a beagle. It is inspecting the outside of a plane, to see if there are any drugs or other substances hidden there.