SALT LAKE CITY (AP) — The mayor of Salt Lake City says an investigation found evidence that officers violated department policies in the rough arrest of a nurse who refused to allow a blood draw on an unconscious patient.

Mayor Jackie Biskupski discussed the findings Wednesday in an unusual step aimed at healing what she called a rift in public trust after a video surfaced of the nurse being dragged from the hospital in handcuffs.

The investigation found evidence that Detective Jeff Payne and Lt. James Tracy broke guidelines on arrests, ethics and officer conduct, among others.

Their lawyers could not immediately be reached for comment.

Salt Lake City police chief Mike Brown will decide what consequences the officers might face. Prosecutors have also opened a criminal investigation.