The Fourth Amendment protects you from searches and seizures that are “unreasonable.” Although many people consider material goods to be the focus of a “seizure,” the fact is when a person is placed under arrest or detained this is also considered to be seizure. This is a “seizure of person.”
The Fourth Amendment outlines our rights against “unreasonable searches and seizures” in the following way, “The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.”
Note the phrase “shall not be violated,” which indicates that any “unreasonable” seizure violates the law. This is true in both the seizure of property and of person.