“ It is a requirement that cannot be deemed to be satisfied by mere notice and hearing if a state has contrived a conviction through the pretense of a trial which in truth is but used as a means of depriving a defendant of liberty through a deliberate deception of court and jury by the presentation of testimony known to be perjured. Such a contrivance by a state to procure the conviction and imprisonment of a defendant is an inconsistent with the rudimentary demands of justice as is the obtaining of a like result by intimidation. ”

“ That requirement, in safeguarding the liberty of the citizen against deprivation through the action of the state, embodies the fundamental conceptions of justice which lie at the base of our civil and political institutions. ”

“ The prerogative writ of habeas corpus is available in that state. Constitution of California, art. 1, § 5; article 6, § 4. No decision of the Supreme Court of California has been brought to our attention holding that the state court is without power to issue this historic remedial process when it appears that one is deprived of his liberty without due process of law in violation of the Constitution of the United States. Upon the state courts, equally with the courts of the Union, rests the obligation to guard and enforce every right secured by that Constitution. ”