If you are doing nothing wrong, you have nothing to worry about. It is being done for YOUR protection. After all, we live in dangerous times.
If you are doing nothing wrong, you have nothing to worry about. It is being done for YOUR protection. I do hope you simply forgot the /sarcasm flag.
Legalities and rights aside, this was very foolish on the school's part. The ill will and low student morale this will cause is far beyond any good they might have thought could come from it.