Dogs don't seem to stay on patrol routs all the time
When I set dogs on patrol path to sniff out anything in the cells and when the dog does sniff out what might be contraban sometimes a different dog and handler will take the patrol path and the previous dog and handler will go back to the kennel. When the different dog and handler take the patrol path they have to start all over, which can take more time searching especially since it's searching through cells that have already been searched. This doesn't always happen though, sometimes when the dog does find a spot to search it will go back to the patrol path.
Then again it now seems to be happening whenever the dog finds what might be contraban