One hypothesis is that this is for them.
As well as ending the 4th Amendment,
this will identify which students are the easiest targets.
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.[1]
As well as ending the 4th Amendment,
<sarcasm>Don't worry, once we've completely given away all of our other rights, we'll just get them back using our 2nd Amendment rights. Fighting superior government forces will be more convenient than standing up for our rights at the ballot box or in the courts.</sarcasm>