But the Walmart case posed challenges for investigators. Much of the conduct uncovered in Mexico, for example, couldn’t be used as evidence because it was too old, according to the people familiar with the matter. So the government sought to build stronger cases in other countries. In Brazil and India, investigators found more recent examples of what they believed were improper payments, yet struggled to find examples of rampant misconduct in China, the people said.

Source: Los Angeles Times June 20, 2019 19:30 UTC