<p>To be very honest with you:
everyone collaborates/copies homework…it’s not a big deal because if you don’t do the homework you won’t know the material
sharing lab test results won’t help anyone because it’s more than likely that each lab group has different data so a teacher will know
i have no idea what a crib sheet is…
also, getting last years tests from upperclassmen is something everyone does…like if you have an older sibling who took the same class that you’re in…
at my school teachers change the tests every year, and students don’t keep tests ever. only quizzes are kept.</p>
<p>To answer your question, unbeknownst to you the school probably already is vigilant on cheaters…</p>