The teacher confiscated the students' mobile phones and checked the text messages, but returned them to the parents instead of the students, right?

The key lies in the school rules! If it is stipulated in the school rules that all students in our school are not allowed to have mobile phones, and there are places to drop out, then the confiscation is reasonable, and you must understand that you are wrong (even if the teacher neglects to find out, it is wrong). It is wrong for the teacher to check the text message, and you have no proof. Even the computer teacher can't unlock the password except to buy a black model mobile phone next time. It is despicable to give it back to parents, hehe (most parents don't know that their children have mobile phones). But it's good to see that the teacher still wants to give you a lesson, or you'll have to transfer according to the school rules. So be careful. Learn from failure. Don't be too ostentatious when using a mobile phone at school (I support having a mobile phone, after all, what age is it). The mobile phone must have a password, and don't forget to delete the message! Don't forget that although almost all students have it, there are black households in front of the school rules.