exception further modified it..    
Cases in its jurisprudence include the Olmsted case, which held that it didn't apply to wiretapping, but that view was later modified by the Berger and Katz cases .  New Jersey v. TLO, which established parameters under which it applies in public schools, and Ker v. California, which established a plain view exception further modified it..    Weeks v. U.S. established what happens when it is violated; the relevant evidence is excluded from trial.  For ten points, name this amendment to the U.S. Constitution, which protects Americans from unreasonable searches and seizures.
Cases in its jurisprudence include the Olmsted case, which held that it didn't apply to wiretapping, but that view was later modified by the Berger and Katz cases .  
{Fourth} Amendment to the U.S. Constitution