An essay by Associate Professor of History Jennifer Tucker is included in The Five Photographs that (You Didn’t Know) Changed Everything, a five-part BBC radio series focusing on historically important yet little-known photographs. In her segment, The Tichborne Claimant, Tucker tells the story of how an 1866 photograph of a butcher in Wagga Wagga, Australia, played a central role in a case that gripped Victorian Britain and had an enormous impact on our legal system, raising questions about what photography is for and how it should be used. Says Tucker: “Sometimes even a mundane photograph can have a powerful and…