Zero tolerance rules protect school administrators no longer allowed to think and reason, to put things in context, to make judgement calls - just follow the rules. Eventually it is dummies who take school administrator jobs because it only takes a dummy to just follow rules.
Just follow the rules if you want to keep your job. Let the police handle it. If you want to be a maverick or one of those "inspirational authority figure teachers" that they made movies about in the 1980s, you are putting your job, savings, and possibly your freedom at risk.