A lawsuit has been filed by billionaire investor Leon Black. He is seeking to block certain subpoenas. These subpoenas were issued as part of an investigation into Jeffrey Epstein.

The subpoenas were served after a closed-door interview. Black had been asked to provide certain documents and to return for a deposition. Further details about the lawsuit and the investigation are available from the source.

The lawsuit makes certain arguments about the authority of the committee that issued the subpoenas.