While Article IV, Section 2 of the United States Constitution did guarantee the right of slave owners to reclaim fugitive slaves. However, it did not set up the legal mechanism. The Fugitive Slave Act of 1793 passed by the second Congress added that mechanism. It authorized the arrest of runaway slaves and gave any magistrate of a town, city or county to rule on the arrest. The slave hunter only had to state the person captured was a runaway slave. No proof was required and there was no trial. It added a fine of $500 to any person who helped a runaway slave. It was passed in response to the rise of abolitionism in the North and also to the Underground Railroad that was set up to help slaves escape the South.