Payne was sacked after he arrested Alex Wubbels on July 26 after she refused to allow him to draw blood from a patient unconscious after a auto crash.
Biskupski said the internal investigation found Payne violated several city and department policies, including those pertaining to arrests, ethics and officer conduct.
"I am deeply troubled by your lack of sound, professional judgment and your discourteous, disrespectful and unwarranted behavior, which unnecessarily escalated a situation that could and should have been resolved in a manner far different from the course of action you chose to pursue", the chief wrote.
In the police video of the incident, Detective Jeff Payne handcuffed Wubbels and placed her in a police vehicle when she refused to allow officers to obtain a blood sample from a crash victim at the hospital without a warrant.
Attorney Greg Skordas said Tuesday that Detective Jeff Payne would likely still be employed if body-camera footage hadn't generated widespread attention online. Payne's boss, watch commander, Lt. James Tracey, was also demoted as a result of the incident.
Ed Brass, Tracy's attorney, said his client will also appeal.
He says Payne would agree to be disciplined, but the decision to terminate him went beyond what's fair. He says Fox has the "training, judgment and ability to make split-second decisions in dynamic situations". It would have been a he-said, she-said or multiple he-saids against a she-said.
The Associated Press obtained the disciplinary letters for Payne and Tracy through a public records request.
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Furthermore, Brown said Tracy's actions have caused "substantial damage" to the relationship the police department has with local hospitals, nurses and other health care officials that "will take considerable time and resources to rebuild".
The case shows the vital importance of officers wearing body cameras and making those videos available to the public, Porter said.
"Without the body camera footage, it would have been a she-said, they-said", Porter said. 'Alex feels very strongly that her story would have never been told if it weren't for the body camera footage'.
According to the Associated Press, Nurse Wubbels does plan to meet with the city to discuss next steps which could include a settlement.
"We are disappointed with the decision and will be filing an appeal this week".
The University of Utah said it had introduced a new policy on blood samples barring officers from coming to the hospital in person to seek them. The truck driver, who was a reserve officer at an Idaho police department, died late last month. Without a search warrant or the patient's permission, Payne had no right to draw blood, but he remained insistent with Wubbels.
Ms Wubbels's lawyer, Karra Porter, told the Deseret News on Tuesday: "If detective Payne does not believe this is a fireable offense, then I'm glad detective Payne will not be out on the street in uniform tomorrow".