What is a definition of a lawful search?

Question

Quizplus · Accepted Answer

A lawful search is any governmental intrusion into a person's reasonable and justifiable expectation of privacy. This means that the search must be reasonable, both in its scope and its justification, and must not violate the Fourth Amendment to the US Constitution. The Fourth Amendment protects citizens against unreasonable searches and seizures by the government, and requires that searches and seizures be conducted only with a warrant based upon probable cause, or with specific exceptions to the warrant requirement.

What Is a Definition of a Lawful Search