In "Griswold v. Connecticut" (1965), the Supreme Court struck down a law barring the use of contraceptives by married couples. In "Griswold," the Supreme Court recognized for the first time that couples, at least married couples, had a right to privacy, drawing on the Fourth Amendment's protection of private homes from searches and seizures without a warrant based on probable cause, the Fourteenth Amendment's guarantee of due process of law in the states, and the Ninth Amendment's assurance that rights not specified in the Constitution are "retained by the people". "Eisenstadt v. Baird" (1972) expanded the scope of sexual privacy rights to unmarried persons. In 1973, the choice whether to have an abortion was found to be protected by the Constitution in "Roe v. Wade".