The quote below comes from the Supreme Court's ruling in Mapp v. Ohio (1961): We hold that all evidence obtained by searches and seizures in violation of the Constitution is, by that same authority, inadmissible in a state court.

Source: http://www. law. cornell. edu/supct/html/historics/USSC_CR_03 67_0643_ZO. html

This ruling was part of which of these trends?

the Court's efforts to limit executive privilege
the Court's expansion of the rights of the accused
the Court's efforts to achieve an integrated society
the Court's reaction to states' efforts to resist desegregation