An indictment unsealed Wednesday details how “corrupt lawyers” misled clients into making unnecessary medical visits and used fake investigators to aid an alleged multimillion-dollar insurance fraud.

The federal grand jury indictment of a chiropractor and two clinic operators stopped short of identifying the attorneys but illustrated widening investigative scrutiny of South Florida lawyers handling personal injury protection, or PIP, insurance claims. It also detailed how attorneys allegedly “misled patients through fraudulent statements” designed to ensure claimants received the most expensive treatments to collect the maximum $10,000 PIP benefit.