My school had a no mobile phones allowed on the school premises rule. Whilst I completely agree with schools being able to say no mobiles during class ect and being able to confiscate them for the duration of the lesson or even the day, I found the no mobiles on school premises a bit too far. It meant if you were found to have a mobile anywhere in school at any point of the school day (even say at lunch time in the lunch hall, or in the corridor leaving school for the end of the day). They could confiscate your phone. A second add on to the rule (which was my main problem with it) was that is a phone was confiscated it was taken to the school office and HAD to be collected by a parent and they made no exceptions with this rule.
I once had my phone confiscated from me at lunch time in the hallway, I was told to get a parent to come and collect it. I told her my mum is disabled and cannot get to the school to pick it up, she said to get my father to pick it up I said I didn't have one. She didn't care she said get your mum to come in, so there is my mum disabled to **** having to pay money for a taxi to come in and collect a phone that was taken off me despite me not being of any disruption with it.
Now you may say "oh don't take your phone to school". Due to my mums disability and possibly needing to contact me at any time and also because I had to walk a long distance home often times in the dark my mum would not allow me to leave the house without my mobile for safety reasons. There were many other students with similar reasoning for needing to have mobile phones on their person, such as students needing to travel home via a couple of buses or a bus then train who may have needed to contact parents in the event of a train delay or cancellation stuff like that.