Can a student be suspended for witness fight and do not tell teacher?

Yes, a student can be suspended for participating in a witness fight even if they do not tell the teacher. Most schools have a zero-tolerance policy for fighting, regardless of the circumstances. This means that any student who is involved in a fight, even if they are defending themselves or someone else, can be suspended or even expelled. Some schools may also consider fighting to be a serious enough offense to warrant criminal charges.