 He was the managing editor of the BYU Law Review from 1986 to 1987 and was an adjunct law professor at BYU.Keetch served as a clerk to federal appellate judge George C. Pratt of the United States Court of Appeals for the Second Circuit as well as Chief Justice Warren Burger and Associate Justice Antonin Scalia of the United States Supreme Court.Keetch was clerk to Scalia when Scalia wrote the ruling in Employment Division v. Smith, a ruling Keetch has worked to overturn or at least lessen in impact ever since.