SALT LAKE CITY, Utah — A months-long 2News investigation has uncovered sharp contrasts in how two local government agencies responded to allegations of an inappropriate relationship between a Salt Lake County prosecutor and a West Valley City police detective. At the center of the controversy are Salt Lake County Deputy District Attorney Adrianna Davis and West Valley City Police Detective Josue Llil. While the Salt Lake County District Attorney’s Office has consistently dismissed the allegations as “salacious and unsupported,” internal records show that West Valley City Police took the matter far more seriously. According to documents obtained by 2News, West…