To answer what criminal stuff witnessed at NVS, is first to ask, what day?
For employees: intimidation, harassment, and flat out retaliation. Don't dare bring up a compliance issue with your manager. There is no supportive HR, employment law, or even the ethics and compliance group.
In the field: forced off label promotion, bribes, you name it.
NVS has a culture which is broken. Sit back and watch the government take over. This CIA is just the appetizer....