If you will like to learn some more about the different methods and techniques that are used in order to find a missing person, you can read about it on the Find People Records web page. On this site you will have the chance of reading a number of different articles on the subject.
But this web page seems to have material on many different subjects that are all related with finding people and not only with the horrible situation of having lost a loved one. Yes, you will have the possibility of reading about how they use dogs in kidnap situations and other missing person circumstances. But you can also read about how to locate the perfect team for you new company and the most creative one: how to find the right characters for your novel. 
