The Liberty Institute is a legal firm based in Plano, Texas, that advocates for the rights of religious groups in land use and other cases.

Alan C. Weinstein is a professor of law and urban studies at Cleveland State University in Ohio.

Richard B. Saphire is a professor of constitutional law at the University of Dayton in Ohio with expertise in church-state issues, including land use questions.

Daniel Lauber of River Forest, Ill., is a past president of the American Planning Association and has given interviews on RLUIPA.

Scott C. Idleman is a law professor at Marquette University in Milwaukee. He specializes in church-state issues, including religious freedom and land use questions.

David Goldberger is a law professor emeritus at Ohio State University and was an attorney in a Supreme Court case involving RLUIPA.

Thomas R. McCoy is a professor of law emeritus at Vanderbilt University in Nashville, Tenn. He retired from the university in 2008 but continues to speak frequently on First Amendment issues and advises the Freedom Forum’s First Amendment Center.

Bryan K. Fair is a professor at the University of Alabama School of Law, where his specialties include the First Amendment.

John W. Whitehead is president and founder of the Rutherford Institute, a nonprofit organization in Charlottesville, Va., that works to advance religious freedom through litigation, education and advocacy. Although the institute has a Christian doctrinal statement, its services are not limited to Christians.