The 23rd annual Rothgerber Conference Oct. 15 and 16 will celebrate the career of Professor Hal Bruff, who served as Colorado Law’s dean from 1996 until 2003. Conversations will focus on the questions raised in Bruff’s most recent book, Untrodden Ground: How Presidents Interpret the Constitution , in which he explores how all 44 presidents have responded to pressing matters by setting new legal precedents, which often developed into standard practices.