I'm pretty sure that "reasonable expectation of privacy" is found no where in the Constitution. No, but it was established in Katz v. United States[1]

I'm pretty sure that "reasonable expectation of privacy" is found no where in the Constitution. No, but it was established in Katz v. United States[1] as one part of a two-part test of whether a search is constitutional under the Fourth Amendment. [1] http://en.wikipedia.org/wiki/Katz_v._United_States http://en.wikipedia.org/wiki/Katz_v._United_States