Mark Graber, JD, an expert in U.S. constitutional law at the University of Maryland Francis King Carey School of Law is available for immediate commentary on what Tuesday's U.S. Supreme Court arguments on the legality of warrent-less cell phone searches and seizures by police mean for the general public.

Graber is recognized as one of the leading scholars in the country on constitutional law and politics. He is the author of A New Introduction to American Constitutionalism, forthcoming in 2013 from Oxford University Press, and co-editor of American Constitutionalism: Structures and Powers and American Constitutionalism: Rights and Powers, both also from Oxford University Press.