Before his District Attorney election, Sim Gill worked as Salt Lake City's Chief Prosecutor.
[3] On March 18, 2014, Gill announced his bid for a second term,[4] and in November of the same year, defeated Republican challenger Steve Nelson, retaining his position as the District Attorney.
[5] In 2018, Gill announced that he would run for a third term, and in November of the same year, defeated challenger Nathan Evershed.
Gill participated in the prosecution of Brian David Mitchell, the man found guilty of the 2002 kidnapping of Elizabeth Smart.
[7] He filed felony corruption and bribery charges against Utah Attorneys General Mark Shurtleff and John Swallow in 2014.