2015 is most current info from their web page.
https://www.justice.gov/usao-ut/about
About the Office
The U.S. Attorney’s main office is located in Salt Lake City and employs approximately 85 employees, including 45 Assistant U.S. Attorneys. The U.S. Attorney’s Office prosecutes federal crimes, enforces federal law on Indian reservations and federal facilities, enforces civil statutes and defends the United States against lawsuits.
The U.S. Attorney’s Office also has a branch office in St. George which opened in 2008 to address the law enforcement needs of the southwestern part of the State where there is significant population growth. The St. George office is primarily responsible for handling federal criminal matters which arise in southwestern Utah, including drugs, firearms, immigration, bank robberies, child pornography and exploitation, fraud, and other offenses. The office also oversees the prosecution of criminal violations occurring in national parks and forests and on other public lands.
Both offices seek to maintain the highest standards of excellence in the enforcement of federal criminal law and the representation of the United States, its agencies, and employees in federal civil actions.
Updated March 13, 2015