Probability of Success is the likelihood of finding the misper or search object given the search area and search resource. It is calculated as below;

POS = POA x POD

It is the role of the Search Management Team to maximise the POS of the search. [Find the missing person or object as quickly as possible!]

This does not mean maximising the POD (Probability of Detection) of the search effort. In fact, in many cases maximising POD will reduce the POS of the search!