She said Duff did not seek a continuation of name suppression.
Crown prosecutor Richard Smith made no submissions, noting the defendant was in hospital.
Duff was formerly a sport shooter selected for the 2006 Melbourne Commonwealth Games.
He competed in skeet shooting, singles and doubles, where he placed 10th and seventh overall.
He will reappear on May 26 for a case review hearing.
Emergency services were called to Adams Flat Rd, South Otago, about 6.10pm on January 24 after reports of a serious incident.
Stuff earlier reported Clark was stabbed multiple times in the back.
A death notice published in the Otago Daily Times said Clark was “tragically taken”.
She was the daughter of the late Jasper Clark and Joan Clark, and a sister and sister-in-law to extended family across South Otago.
Her death came just days after Clark delivered the eulogy at her father’s funeral, after his January 11 death.
Former colleagues described Clark as a highly respected and much-loved veterinarian with deep connections to the farming community.
John Smart, who worked with Clark for about 30 years across Clutha Vets practices, said her death was “a hell of a shock”.
“She was a highly respected vet,” he said.
“I know the whole community down there will be absolutely in mourning for the tragedy of losing Jillian.”
Another former colleague, Tony Smith, described Clark as “an amazing person” who was deeply connected to her local area and the farming community she served.
Ben Tomsett is a multimedia journalist based in Dunedin. He joined the Herald in 2023.