Deltan Martinazzo Dallagnol is an attorney of the Federal Public Ministry of Brazil. He is known for being the lead prosecutor of Operation Car Wash, an investigation into corruption at Brazilian oil company Petrobras. He holds a law degree from the Federal University of Paraná and a master's degree from Harvard University. Dallagnol has been with the Public Ministry since 2003, and specializes in crimes against the national financial system and money laundering.