Case studies, surveys, naturalistic observation, and laboratory observation are examples of descriptive or correlational research methods.Using these methods, researchers can describe different events, experiences, or behaviors and look for links between them.ase studies, surveys, naturalistic observation, and laboratory observation are examples of descriptive or correlational research methods.
Posted with permission of the author.Follow this and additional works at:http://scholarship.law.georgetown.edu/fwps_papersPart of theCivil Law Commons,Civil Rights and Discrimination Commons, and theConstitutional Law Commons Louis Michael Seidman, ON CONSTITUTIONAL DISOBEDIENCE (Oxford University Press,forthcoming).
A companion to the exclusionary rule is the fruit of the poisonous tree doctrine. Under this doctrine, a court may exclude from trial not only evidence that itself was seized in violation of the Constitution but also any other evidence that is derived from an illegal search.or the more than 100 years after its ratification, the Fourth Amendment was of little value to criminal defendants because evidence seized by law enforcement in violation of the warrant or reasonableness requirements was still admissible during the defendant's prosecution.