The research problem examined in my thesis is stated clearly in the title: Justice Brennan and The Bill of Rights. In my examination, I relied primarily on Brennan's opinions, and secondarily, on scholarly commentaries authored by Brennan and others. I located the cases through a combination of sources. Initially, I consulted the Harvard Law Reviews' "Supreme Court Term, (1956-1981) Term(s)," which is published annually in its November edition, and then, I turned to the writings by, and about, Brennan my findings show that Brennan's approach in these cases has evolved over the years toward a more absolutist one.