Answer:
The Fugitive Slave Acts were a pair of federal laws that allowed for the capture and return of runaway slaves within the territory of the United States. Enacted by Congress in 1793, the first Fugitive Slave Act authorized local governments to seize and return escaped slaves to their owners and imposed penalties on anyone who aided in their flight. Widespread resistance to the 1793 law led to the passage of the Fugitive Slave Act of 1850, which added more provisions regarding runaways and levied even harsher punishments for interfering in their capture. The Fugitive Slave Acts were among the most controversial laws of the early 19th century. Statutes regarding refugee slaves existed in America as early as 1643 and the New England Confederation, and slave laws were later enacted in several of the 13 original colonies. Among others, New York passed a 1705 measure designed to prevent runaways from fleeing to Canada, and Virginia and Maryland drafted laws offering bounties for the capture and return of escaped slaves.
By the time of the Constitutional Convention in 1787, many Northern states including Vermont, New Hampshire, Rhode Island, Massachusetts and Connecticut had abolished slavery.
Concerned that these new free states would become safe havens for runaway slaves, Southern politicians saw that the Constitution included a “Fugitive Slave Clause.” This stipulation (Article 4, Section 2, Clause 3) stated that, “no person held to service or labor” would be released from bondage in the event they escaped to a free state. Despite the inclusion of the Fugitive Slave Clause in the U.S. Constitution, anti-slavery sentiment remained high in the North throughout the late 1780s and early 1790s, and many petitioned Congress to abolish the practice outright.
Bowing to further pressure from Southern lawmakers—who argued slave debate was driving a wedge between the newly created states—Congress passed the Fugitive Slave Act of 1793.
This edict was similar to the Fugitive Slave Clause in many ways, but included a more detailed description of how the law was to be put into practice. Most importantly, it decreed that slave owners and their “agents” had the right to search for escaped slaves within the borders of free states.
In the event they captured a suspected slave, these hunters had to bring them before a judge and provide evidence proving the person was their property. If court officials were satisfied by their proof—which often took the form of a signed affidavit—the owner would be permitted to take custody of the slave and return to their home state. The law also imposed a $500 penalty on any person who helped harbor or conceal escaped slaves.
The Fugitive Slave Act of 1793 was immediately met with a firestorm of criticism. Northerners bristled at the idea of turning their states into a stalking ground for bounty hunters, and many argued the law was tantamount to legalized kidnapping. Some abolitionists organized clandestine resistance groups and built complex networks of safe houses to aid slaves in their escape to the North.
Explanation:
basically: Following increased pressure from Southern politicians, Congress passed a revised Fugitive Slave Act in 1850. Part of Henry Clay's famed Compromise of 1850—a group of bills that helped quiet early calls for Southern secession—this new law forcibly compelled citizens to assist in the capture of runaway slaves.