The Salt Lake County District Attorney’s Office serves as the primary prosecutorial body for Salt Lake County, which includes West Valley City. According to a news release from the office, the agency's work involves investigating incidents and working in conjunction with local law enforcement, such as the West Valley City Police Department, to determine if the use of force in specific incidents is lawful under Utah law.
Currently, Sim Gill serves as the Salt Lake County District Attorney. The office's leadership includes Chief Deputy Jeffrey William Hall, who serves in the Justice Division. Other leadership roles within the Justice Division include Chief Deputies Blake Nakamura and Ralph Chamness, the latter of whom serves in the Civil Division. The office is located at 111 East Broadway, Suite 400, Salt Lake City, Utah.
The office's responsibilities include prosecuting various criminal offenses, ranging from first-degree murder to manslaughter. In a 2022 case involving a murder in West Valley City, the office's prosecution resulted in a sentence of 15 years to life for the defendant, Miguel Zamora-Bonilla. According to a news release from the Salt Lake County District Attorney’s Office, the office's work in that case helped ensure a successful prosecution following an investigation by the West Valley City Police Department.
Beyond standard criminal prosecutions, the office's staff is involved in reviewing critical incidents. For example, the office conducted a review regarding an officer-involved critical incident that occurred on December 29, 2011, in West Valley City. The purpose of such reviews is to determine whether the force employed by officers is lawful under Utah law. The investigation into that specific incident involved coordination with the West Valley City Police Department.
The office also handles complex legal matters involving juvenile justice and allegations of procedural errors. In a case involving a 15-year-old at Scottsdale Park in West Valley City, the office faced allegations of prosecutorial misconduct. According to a KUTV investigation, the case involved a dispute over whether twenty-seven pieces of evidence were properly turned over to the defense. The office admitted that evidence was not turned over after a plea deal for manslaughter had been accepted and the case was closed. The investigation also looked into whether a prosecutor had an undisclosed relationship with a West Valley City Police Detective.
Residents of West Valley City interact with the Salt Lake County District Attorney’s Office through the legal system when the office pursues charges following police investigations. The office's decisions can impact the outcome of local criminal cases, whether through successful prosecutions or through the adjudication of motions regarding evidence disclosure and prosecutorial conduct.
What this means for West Valley City
For West Valley City residents, the Salt Lake County District Attorney’s Office is the central entity responsible for prosecuting local crimes. Because the office manages everything from juvenile cases to murder trials, its adherence to evidence disclosure rules and its cooperation with local police directly impact the legal outcomes and justice served within the community.
