Wichita ? Attorneys for the defense and prosecution sparred Friday over how many photos of nude residents of a home for the mentally ill should be shown during the federal trial of the home’s owners.

Arlan Kaufman, 68, and Linda Kaufman, 62, face more than 30 federal counts – including health care fraud, forced labor and holding clients in involuntary servitude – related to the treatment of mentally ill residents at the Kaufman House Residential Treatment Center in Newton.

They have pleaded not guilty to all counts.

Federal prosecutors accuse the couple of forcing residents to work in the nude on a Potwin farm and perform videotaped sexual acts. But the defense contends the goal of the therapy sessions was to remove some of the shock value that some of the residents had been trying to achieve by exposing themselves in public.

Videos shown Friday morning showed residents exposing themselves and masturbating. Arlan Kaufman told residents in one taped segment that the purpose of the videos was to show other mental health professionals how he treated patients with dysfunctional sexual behavior.

At one point, U.S. District Judge Monti Belot told prosecutors they were entering too many nude videos and photographs into evidence.

“We’ve seen them working on a farm – I don’t think we need to see any more of that,” Belot said in arguments outside the presence of the jury. “We’ve seen them in what looks like a kitchen in one of these houses – I don’t think we need to see any more of that.”

Assistant U.S. Atty. Tanya Treadway said the tapes were needed to help jurors understand the relationship between the Kaufmans and the mentally ill residents in their care.

But Tom Haney, attorney for Arlan Kaufman, said the large volume of photos and videos was “being offered for nothing other than to show nude people to inflame the jury.”