There was a court order and the 3 dudes doing the checks were accompanied by police. The on-prem audit was extremely thorough. Completely different story with a bunch of lawsuits. We are 99% sure a fired employee reported the client, said employee was fired for trying to steal company data after said employee said they were leaving for a direct competitor.
We weren't around for the first audit but the second audit was on-prem with a party that facilitates audits/checks based on evidence of misconduct.