Sérgio Moro began serving as a federal judge in 1996. Prior to his involvement in Lava Jato, he tried multiple money-laundering cases, and served as an auxiliary judge in the Mensalão case. The interview featured in this chapter took place several months before Moro joined President Jair Bolsonaro’s administration as justice minister. The recorded exchange captures some insights into Moro’s thinking about Lava Jato, starting with what he suggests made the investigation possible.