What do Private detectives do?

Question

What do Private detectives do?

Answer 1

They investigate.

Answer 2

Investigations the police don't do. For instance, private detectives often do workers comp fraud investigations for insurance companies or the government, or they can do skip searches for people who don't pay their bills or bounce checks, or they can do asset searches for lawyers in divorce cases, etc. etc.

In short, they do any kind of fact finding investigation needed by their clients.