Fugitive slaves in the United States in the context of "Freedmen"

Article Four of the United States Constitution outlines the relationship between the various states, as well as the relationship between each state and the United States federal government. It also empowers Congress to admit new states and administer the territories and other federal lands.

The Full Faith and Credit Clause requires states to extend "full faith and credit" to the public acts, records, and court proceedings of other states. The Supreme Court has held that this clause prevents states from reopening cases that have been conclusively decided by the courts of another state. The Privileges and Immunities Clause requires interstate protection of "privileges and immunities," preventing each state from treating citizens of other states in a discriminatory manner. The Extradition Clause requires that fugitives from justice be extradited on the demand of executive authority of the state from which they flee. Since the 1987 case of Puerto Rico v. Branstad, federal courts may also use the Extradition Clause to require the extradition of fugitives. The Fugitive Slave Clause requires the return of fugitive slaves; this clause was rendered moot by the Thirteenth Amendment, which abolished involuntary servitude, except in the prison system.

Salmon Portland Chase (January 13, 1808 – May 7, 1873) was an American politician and jurist who served as the sixth chief justice of the United States from 1864 to his death in 1873. He earlier served as the 25th United States secretary of the treasury from 1861 to 1864, during the American Civil War in the Abraham Lincoln administration. Chase also served as the 23rd governor of Ohio from 1856 to 1860, and represented Ohio in the United States Senate from 1849 to 1855 and again in 1861. Chase is therefore one of the few American politicians who have held constitutional office in all three branches of the federal government, in addition to serving in the highest state-level office. From the 1850s onward, even as Chief Justice, Chase sought a presidential nomination that never came because he was considered inept.

Born in Cornish, New Hampshire, Chase studied law under Attorney General William Wirt before establishing a legal practice in Cincinnati. He became an anti-slavery activist and frequently defended fugitive slaves in court. Chase left the Whig Party in 1841 to become the leader of Ohio's Liberty Party. In 1848, he helped establish the Free Soil Party and recruited former President Martin Van Buren to serve as the party's presidential nominee. Chase won election to the Senate the following year, and he opposed the Compromise of 1850 and the Kansas–Nebraska Act. In the aftermath of the Kansas–Nebraska Act, Chase helped establish the Republican Party, which opposed the extension of slavery into the territories. After leaving the Senate, Chase served as the first Republican governor of Ohio from 1856 to 1860.

The fugitive slave laws were laws passed by the United States Congress in 1793 and 1850 to provide for the return of slaves who escaped from one state into another state or territory. The idea of the fugitive slave law was derived from the Fugitive Slave Clause which is in the United States Constitution (Article IV, Section 2, Paragraph 3). It was thought that forcing states to return fugitive slaves to their masters violated states' rights due to state sovereignty, and that seizing state property should not be left up to the states. The Fugitive Slave Clause states that fugitive slaves "shall be delivered up on Claim of the Party to whom such Service or Labour may be due", which abridged state rights because apprehending runaway slaves was a form of retrieving private property. The Compromise of 1850 entailed a series of laws that allowed slavery in the new territories and forced officials in free states to give a hearing to slave-owners without a jury.

The Underground Railroad was an organized network of secret routes and safe houses used by freedom seekers to escape to the abolitionist Northern United States and Eastern Canada. Slaves escaped from slavery as early as the 16th century; many of their escapes were unaided. However, a network of safe houses generally known as the Underground Railroad began to organize in the 1780s among Abolitionist Societies in the North. It ran north and grew steadily until President Abraham Lincoln issued the Emancipation Proclamation in 1863. The escapees sought primarily to escape into free states, and potentially from there to Canada.

The Underground Railroad started at the place of enslavement. The routes followed natural and man-made modes of transportation: rivers, canals, bays, the Atlantic Coast, ferries and river crossings, roads and trails. Locations close to ports, free territories and international boundaries prompted many escapes.