The size of the jury is to provide a "cross-section" of the public. In Williams v. Florida , 399 . 78 (1970), the Supreme Court of the United States ruled that a Florida state jury of six was sufficient, that "the 12-man panel is not a necessary ingredient of "trial by jury," and that respondent's refusal to impanel more than the six members provided for by Florida law "did not violate petitioner's Sixth Amendment rights as applied to the States through the Fourteenth ."  In Ballew v. Georgia , 435 . 223 (1978), the Supreme Court ruled that the number of jurors could not be reduced below six.