If it is a private school, then it is probably legal. You will have to review all of the paperwork you undoubtedly had to sign to get your child into the school. Schools, especially private schools, have strict "honor" codes, etc. and if the teacher was suspecting any cheating or other violations of the rules, then they do have some leeway. It could be different in a public school, but private schools can make their own rules.
Answered on Feb 21st, 2013 at 11:28 PM