Injunctions - has anyone placed an injunction on a parent, stopping them harassing a teacher in a school?

I havent heard of that. However, our school has banned people from coming on school grounds. If they do, they get ticketed/arrested for trespassing. A few parents have been banned. The cops usually take it pretty serious when a schools bans someone. The trespass thing would probably be easier to setup and enforce than an injunction.

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