WASHINGTON (AP) — A former Olympian charged with deliberately damaging the the Lincoln Memorial Reflecting Pool is seeking access to all of the closed-door testimony that led to his indictment, pointing to “irregularities” in those grand jury proceedings.

In a court filing Monday, David Hearn’s attorneys requested an order for the government to turn over a complete transcript of all grand jury proceedings. They also want prosecutors to disclose the legal instructions they gave to grand jurors about the elements of Hearn’s alleged crime.