What rights do U.S. citizens and non-citizens have when they encounter law enforcement? NPR's A Martinez speaks with Georgetown University law professor Paul Butler.

Now we're going to shift from the political back to the legal. Let's bring in Georgetown Law professor and attorney Paul Butler. He's a former federal prosecutor and an expert on criminal law. Welcome ...

NPR's Mary Louise Kelly talks with Georgetown University professor and former prosecutor Paul Butler about the historic federal charges against former President Donald Trump over classified documents.

NPR's Scott Detrow talks with Georgetown Law professor and attorney Paul Butler -- a former federal prosecutor and expert on criminal law -- about... Georgetown law professor reacts to Trump verdict ...