Mark Crossman's text introduces students to argumentation theories associated with testing arguments and reasoning, and encourages the use of these tests of arguments during debating. The text describes the theories and practices associated with NPDA style parliamentary debate, and provides an overview of the basics of ?parli? debate. Burden of Proof includes chapters focusing on the following areas: the stock issues associated with arguing propositions of fact, value, and policy; refutation and the strategic considerations pertaining to the duties of the various speakers in a debate; and hints for overcoming anxiety to optimize effective delivery. The text also provides an overview of forensics (competitive speaking) and describes each of the major competitive events and tournament procedures. Written for students in Argumentation and Debate, Burden of Proof could also be used in any course featuring forensics.