These new translations of the Defence of Socrates, the Euthyphro, and the Crito present Plato's remarkable dramatizations of the momentous events surrounding the trial of Socrates in 399 BC, on charges of irreligion and corrupting the young. They form a dramatic and thematic sequence, raising fundamental questions about the basis of moral, religious, legal, and political obligation. The Introduction provides a stimulating philosophical and historical analysis of these texts, complemented by useful explanatory notes and an index of names.