The Fugitive Slave Act of 1850 was a law passed by the United States Congress that mandated the return of runaway slaves to their owners, even if they were found in free states. This act heightened tensions between Northern and Southern states, contributing to sectional conflict, influencing political dynamics leading up to the election of 1860, and impacting African Americans' experiences in the early Republic. It was a critical component of the Compromise of 1850, which attempted to ease disputes over slavery in newly acquired territories.