i have the priest as my contact but is he any use to me?!
Just to add, you only get one evidence and one non evidence contact per city.
the non evidence contact can also give you a suspect name even if all your suspects clam up and you haven't discovered all your suspects.
it's an important contact once you start to do cases above really really hard level.
They are also extremely useful when suspects run awway before you can question them at higher levels.