Prior to his appointment to the Appellate Court, Judge Devlin served as a Superior Court judge, having been appointed to this position by Governor Lowell Weicker in 1993. In this role, Judge Devlin heard criminal cases in the judicial districts of New Haven, New London, Fairfield, Hartford and Stamford. During this time, he presided over several notable trials including State v. Beth Carpenter, State v. Russell Peeler and State v. Christopher DiMeo.
From 2010 to 2017, Judge Devlin served as the Chief Administrative Judge for the Criminal Division of the Superior Court, representing the Chief Court Administrator on matters of policy affecting criminal matters, advising and assisting other judges assigned to criminal court, and soliciting advice and suggestions from judges and others. He has also served on several Judicial Branch committees, including the Committee of Judicial Ethics, chair of the Criminal Jury Charge Committee and the Judicial-Media Committee, of which he was co-chair. He is also the chair of the Connecticut Sentencing Commission.
Before his appointment to the bench, Judge Devlin served as a federal prosecutor for the U.S. Department of Justice in its Organized Crime Strike Force. In 1992, he was recognized by the U.S. Attorney General as one of the outstanding federal prosecutors in America for his work as a member of the prosecution team that secured convictions of the hierarchy of the New England mob.
Judge Devlin is a lifelong resident of Connecticut and an honors graduate of the University of Connecticut School of Law.