The right of the people to be secure in their persons, houses, papers, and effects,[a] 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.

>>no Warrants shall issue, but upon probable cause, supported by Oath or affirmation<<

that means there must be affirmation of probable cause to an overseeing body [i.e. judiciary]

administrative warrants are a process of "i know im right i dont need someone else to look things over"