In May 2008, a unit of Koch Industries Inc., one of the world’s largest privately held companies, sent Ludmila Egorova-Farines, its newly hired compliance officer and ethics manager, to investigate the management of a subsidiary in Arles in southern France. In less than a week, she discovered that the company had paid bribes to win contracts.

“I uncovered the practices within a few days,” Egorova- Farines says. “They were not hidden at all.”

“Those activities constitute violations of criminal law,” Koch Industries wrote in a Dec. 8, 2008, letter giving details of its findings. The letter was made public in a civil court ruling in France in September 2010; the document has never before been reported by the media.

Egorova-Farines wasn’t rewarded for bringing the illicit payments to the company’s attention. Her superiors removed her from the inquiry in August 2008 and fired her in June 2009, calling her incompetent, even after Koch’s investigators substantiated her findings. She sued Koch-Glitsch in France for wrongful termination.