Emery was raised in Phoenix, where his grandfather homesteaded land in the early 1900?s. He received his J.D. from the University of Arizona, and was admitted to the practice of law in 1960. He serves as a Judge Pro Tempore in Pima County Superior Court and as a Judge Pro Tempore for Division One of the Arizona Court of Appeals.
Mr. Barker completed the Masters Forum at the Straus Institute for Dispute Resolution at Pepperdine University. He has served as an arbitrator for the American Arbitration Association construction industry and commercial panels, and the U.S. District Court in Tucson. He is a member of the American Board of Trial Advocates.
His concern for the law extends to guarding its professionalism. He served for seven years on the State Bar Committee on Rules of Professional Conduct, and seven years as a hearing officer in lawyer disciplinary matters. Mr. Barker has presented seminars to attorneys on the subject of professionalism and has served as a State Bar appointee to the Arizona Judicial Qualifications Commission, which oversees the conduct and discipline of the judges in Arizona, and reports directly to the Supreme Court. He has served as President of the Pima County Bar Association and the Pima County Legal Aid Society, and has sat on commissions appointed to study and advise the Legislature on medical malpractice, health care laws, the housing and treatment of prisoners, and legal services to the poor.