Officers found a 46-year-old man outside a home suffering from multiple stab wounds.
A female suspect refused to come out of the house prompting the SWAT call. They used flash grenades to get the suspect out of the house.
Police have arrested and are questioning Traynon Stepter, 33. She is likely to face a felony charge.
The victim is in critical condition at Intermountain Medical Center, but is expected to be OK.