Burnes, if it helps with your coding; When the dog finds weapons, explosives, drugs etc, they sit down near whatever it is they've found. They don't bark, growl etc.

The system used for search dogs is as a game/reward activity for the dog. The dogs think they are playing a game to get a reward. So they work/"play" to get the reward. They also aren't usually too fond of explosions/large bangs (dunno if you want to code that) the dog handlers I spoke to at my first interview said.