How to teach a protection dog to find, but not bite! Unless...........?

In this exercise we are teaching protection dogs to go and look for a possible trespasser and if they do find and locate one to trap them where they are (barking) alerting the owner that they found someone and to not bite them right away. The dogs are taught to bite only if the person runs from that spot trying to get away or they try to attack the dog. Basically, once a suspect gets caught in this position they are going to be arrested the easy way by staying still until the police get there or they
can have it the hard way by trying to fight or flee their way out which will never end well and they'll still be arrested guaranteed!