This article on Wired.com about skip tracer Michelle Gomez is the stuff novels are made of:
Gomez, the proprietor of a one-woman operation in Lockhart, Texas, called Unlimited Recoveries, is one of the best skip tracers in the world. A combination bill collector, bounty hunter, and private investigator, a skip tracer finds people and things that have disappeared on purpose. Gomez specializes in “hard-to-locate recoveries”—she prefers cases others can’t solve. To track down the fleet of Caterpillar wheel loaders taken by the Peruvians, Gomez reached out to the estranged wife of the family’s patriarch, telling the woman that she was pregnant with her husband’s child. The ruse worked: Eventually the wife told Gomez that the heavy equipment was on its way to a construction site in South America.
Read the whole thing. Fascinating stuff.