Once the individuals featured in this series decided to blow the whistle, their lives were forever changed.

For Dee Dee Stone, a Texas CPA, the decision to blow the whistle in 2011 on a client who was operating a Ponzi scheme was a relatively easy one.

That client, fellow CPA David Ronald Allen, was the chief financial officer of an asset-backed investment scheme called China Voice Holding Corp. While Stone was processing tax returns for Allen’s investment partnerships as a subcontractor, she saw China Voice bank statements and knew something was off. When confronted, Allen tried to explain away the fact the investment vehicle looked like it was using new investor money to pay off high returns promised to existing investors, she said. But as Stone had already copied bank statements and tax returns, she knew Allen’s explanations did not measure up with the facts.