In 1806 General Thomas Picton, Britain's first governor of Trinidad, was brought to trial for the torture of a free mulatto named Louisa Calderon and for overseeing a regime of terror over the island's slave population. James Epstein offers a fascinating account of the unfolding of this colonial drama. He shows the ways in which the trial and its investigation brought empire 'home' and exposed the disjuncture between a national self-image of humane...