A Washington, D.C., law firm is demanding the U.S. Securities and Exchange Commission turn over documents involving a fraud investigation into Tesla and SpaceX CEO Elon Musk.

Levi & Korsinsky petitioned the U.S. District Court for the District of Columbia to compel the SEC’s cooperation with a Freedom of Information Act request related to one of its class action cases. Levi & Korsinsky attorneys represent a group of Tesla investors who claim they were duped when Musk tweeted plans to take the company private. The law firm claims the records might help support claims that the tech entrepreneur misled the public and manipulated the market.