obstruction of justice(We can prove you did it, Chloe, so here's the deal: you tell us the truth from now on, and we won't charge you with vandalism and obstruction of justice, okay? 4uzhoj)
obstruct the investigation(Also, if any of your classmates tell the police a story different from yours, and it becomes apparent that you are hiding material information, you can be charged with obstructing the investigation. 4uzhoj)