Private Investigators are often used to track down missing person. They may be individuals who are next-of-kin, insurance claimants, avoiding creditors, or even avoiding alimony & child support payments.
Some people will be harder to find than others. Some will be down the street from their last known address and some will be on the other side of the world. Regardless of the outcome, each investigation begins the same.
Although often all that is required to locate someone is their name and date of birth, the more information provided, the better. Any detail could be useful in locating a subject. Previous addresses, schools attended, places of employment, names of family members & associates, etc. The investigator will sift through the provided information and decide what is useful and what is not. Investigators will start with online searches, using both publicly-available databases, as well as professional databases available to licensed Private Investigators.
In cases where the online & database searches don’t suffice investigators will take to the streets. Knocking on doors and speaking with previous neighbours, coworkers, etc. will sometimes point them in the right direction. There are many different methods and “tricks of the trade” that investigators will use and they are trained to think on their feet and get creative.
Locating someone requires a lot of time and resources. If it was easy, then it wouldn’t be such a common service offered by investigation companies. Private Investigators will not rest until every possible lead has been exhausted. They are a very effective and often successful tool when locating missing persons.