Torgensen has been a familiar fixture in the Attorney General's Office for more than a decade.
Appointed by Shurtleff in 2001, Torgensen oversaw the office's criminal divisions, plus child protection, child support and commercial enforcement divisions. He also helped launch a website designed to allow victims of identity theft to help repair damaged credit through the state's Identity Theft Reporting Information System.
Torgensen will take over the job currently held by Swallow.
"My objective has been to build an executive team with tremendous legal, institutional and life experience," Swallow said in a statement. "I am thrilled at the prospects of moving forward with quality leaders and quality attorneys in this office as we together work to serve and protect the people of Utah."
Tarbet led the Utah National Guard for 12 years, before retiring as an adjutant general in September. The University of Utah law school graduate worked in the Attorney General's Office as the division chief of tax and revenue in the late '90s. He is also a retired major general in the U.S. Army.
Ryan Bruckman, spokesman for Swallow, said "it was a fairly specialized pool" of candidates considered to fill the slots.