Polaris Inc. hired a former general counsel of the Consumer Product Safety Commission to audit the company after it got word about a CPSC investigation into whether it violated federal reporting requirements for off-road vehicles that tended to burst into flames. A header on each page of her report proclaimed: “Privileged and confidential: Protected by attorney client privilege and attorney work product.” But the 32-page audit reportedly contained both legal and business advice. And the Minnesota Supreme Court …