Romesh Ratnesar:  You're the head of a private investigative firm, Quest Research and Investigations LLC, and have written a book on your industry, "The Modern Detective: How Corporate Intelligence Is Reshaping the World." One of the themes of the book is the role that private detectives play in keeping the global financial system solvent by exposing fraud. Based on your experience, are cases of financial and business fraud more prevalent than people are aware of?

Tyler Maroney:  Private detectives are hired by companies, sometimes through outside counsel, to conduct internal investigations. The advantage for companies to hire investigators themselves is that they can control the investigation, so to speak, as opposed to having to go directly to law enforcement. This doesn't mean that they're sweeping fraud under the rug. But it does mean that sometimes private detectives find evidence of wrongdoing that might not reach the level of reportable criminal behavior but is nonetheless important to know about.