He approved the view of the crime scene over the objection of the home’s current owner during pretrial proceedings.

Sullivan said jurors will be allowed to visually inspect the outside of the property and the basement, where Patrick Clancy, 38, discovered the then-couple’s three children — 5-year-old Cora, 3-year-old Dawson, and 8-month-old Callan — strangled. They’ll also view all rooms on the first floor and all rooms on the second floor. They will not be permitted to open closet doors, touch any items within the premises, or disturb any items in the home, according to the order.

Duxbury police and State Police will be responsible for securing the area before jurors arrive and keeping away people not permitted access to the property, he said. Jurors will be under the supervision of police and court security.

During the view, journalists and media outlets will have to remain at least 100 yards away from the premises, according to the order. Sullivan has prohibited the filming or photographing of jurors, and no person “shall contact, follow, interview, or communicate” with jurors prior to the jury leaving the view or “otherwise harass or tamper with a juror” during or after the visit, he said.

After the visit to the home in Duxbury, jurors will also visit the the nearby CVS where Patrick Clancy picked up medicine for his daughter, Cora, and the restaurant ThreeV in Plymouth, where he picked up takeout for the family on the evening Lindsay Clancy allegedly killed their three children.

She will not attend the viewings, said her lawyer, Kevin J. Reddington.

Clancy, 35, a former labor and delivery nurse, doesn’t deny that she strangled the children with exercise bands in the basement before cutting herself and jumping from a second-story window in a suicide attempt that left her paralyzed.

She has pleaded not guilty to three murder counts. Reddington is mounting what’s commonly known as an insanity defense, arguing his client was overmedicated as she struggled with postpartum psychosis and unable to conform her behavior to the law at the time of the children’s deaths.

Prosecutors contend she planned the killings by sending Patrick Clancy to a CVS to pick up medication and to get dinner at the Pymouth restaurant so she’d have enough time to commit the slayings.

Should jurors acquit Lindsay Clancy, she would not go free but would instead be sent to a state psychiatric facility where she would come up for periodic reviews to determine whether she can live safely in the community.

During two days of wrenching testimony, Patrick Clancy said his ex-wife was suffering from postpartum depression and anxiety and confided in December 2022 that she was having “intrusive thoughts” about harming the children, or of something bad happening to them. But, he said, she sought help from doctors, received in-patient psychiatric care, and “was having one of her best days” on Jan. 24, 2023. Clancy said he had no inkling anything was wrong. He found all three children in the basement when he returned from the errands.

He was led out of the courtroom midway through testimony Wednesday, sparing him the trauma of hearing the 911 recording of his gut-wrenching screams as he told police his wife had killed their children. After listening to the call, jurors left the courtroom for a break. Lindsay Clancy sobbed uncontrollably in her wheelchair.

On Thursday, first responders recounted what they saw and heard when they arrived at the crime scene. They described observing a distressed Patrick Clancy screaming inside the home, and their efforts to save the children.

“It turned very chaotic very quickly,” said Duxbury Fire Captain PJ Hussey of the devastating scene.

Shelley Murphy of Globe staff contributed to this report.

Shannon Larson can be reached at shannon.larson@globe.com. Follow her @shannonlarson98.