§3. The next section of this article provides, that "the citizens of each state shall be entitled to all the immunities and privileges of citizens in the several states." This means that the citizens of any state going into other states, shall not, by the laws of those states, be deprived of any of the privileges of citizens; but shall be entitled to the privileges which are enjoyed by persons of the same description in the states to which they remove. Without such a provision, any state might deny to citizens coming into it from other states, the right to buy and hold real estate, or to become voters, or to enjoy equal privileges in trade or business. A state may, however, prescribe a certain term of residence therein as a qualification for voting at elections. §4. The next clause of this section provides for apprehending "a person charged with crime, who shall flee from justice and be found in another state." The governor of the state from which such person has fled, sends a requisition to the governor of the state in which he is found, demanding his delivery to the proper officers, to be conveyed back for trial. Without such authority to apprehend criminals, they might escape justice by taking shelter in another state. §5. In the same section it is provided, that "no person held to service or labor in one state, under the laws thereof, escaping into another, shall, in consequence of any law or regulation therein, be discharged from such service or labor, but shall be delivered up on claim of the party to whom such service or labor may be due." This clause was intended for the benefit of the slaveholding states. By the common law, a slave escaping into a non-slaveholding state became free. As it was presumed that other northern states would follow Massachusetts in abolishing slavery, the southern states wanted some provision to enable them to reclaim their fugitive slaves. §6. The manner in which slaves are to be reclaimed, is prescribed by an act of congress. The owner of a runaway slave, finding him in a free state, arrests him and brings him before a magistrate; and if he proves his title to the slave to the satisfaction of the magistrate, the slave is delivered to the owner or claimant. Free colored persons have sometimes been arrested, and, on false testimony, delivered to claimants, taken to slave states and held as slaves. Hence the opinion prevails extensively that a person claimed as a slave should be entitled to trial by a jury; and that the fact of his being a slave should be proved to the satisfaction of a jury before his delivery to a claimant. Many persons, believing freedom to be the natural right of all men, hold that all laws for returning fugitive slaves are wrong, and ought not to be obeyed.