Companies can no longer accept the risk, to reputation, financially or danger to your staff, in hiring someone because their resume looks good, or they went to the 'right' university or any other criteria - trust but verify.
The same is true for individuals - almost daily there are national media stories of someone losing substantial amounts of money, or suffering personal harm, because they trusted the wrong person.
We have the legal access (such access is regulated and monitored by the Federal and State government) to data bases well in excess of a Google search, which gives us the ability to quickly verify an individual's past history or alert businesses or individuals of red flags which have been raised.
These are normally quick turn around cases. If there are additional concerns, surveillance or other investigative tools can be employed to ally your concerns, or confirm your suspicions.