Lawyers for Dominique Strauss-Kahn said they may seek their own DNA tests in connection with the alleged sex assault on a hotel maid, and asked officials to retain all forensic materials taken as evidence.
In a 14-page filing last week, the attorneys also said they want to see all police notes and associated evidence, including photographs, so they can continue mapping out their defense.
Attorneys William Taylor and Ben Brafman said in the filing that the defense is reserving its right to conduct its own DNA testing.
They said they also want to see all "crime scene photos," photos of the "complaining witness at any time relevant to the charged conduct" and copies of any written documents made by police.
Strauss-Kahn's attorneys have said it will be clear by the end of the case that there was no "forcible" contact.
They also said in the filing that they wanted to review the property seized from the defendant after his arrest, including his computer, iPad and phones.
The attorneys said they are concerned there may be confidential material on those phones -- including voicemails from defense attorneys -- and they asked prosecutors not to listen to such messages.
Strauss-Kahn remains on home confinement at a $50,000-a-month Tribeca townhouse, awaiting trial.
He was arrested on charges of trying to rape a housekeeper when she entered his suite at the Sofitel Hotel. He has pleaded not guilty.
Strauss-Kahn -- once a leading candidate for the French presidency -- has since stepped down as head of the International Monetary Fund.