<p>the concern is not confiscation.<br>
the concern is the ‘search’ part of ‘search and seizure.’</p>
<p>and since the ‘search’ is for one express purpose only and the ‘searcher’ would not be able to use any irrelevant material from said search against the accused, and since the ‘searcher’ is charged with ensuring test integrity, the search is most certainly legal.</p>
<p>moreover, once suspicion has been piqued, there is an element of eventual discovery (that the information would have been found anyways). and since college board likely has lower evidentiary standards than the us justice system, the technical term for your ‘friends’ (if this isn’t just you pretending to be innocent) is ‘screwed up a sensitive area’</p>