One of the points
of going to school is not just to get a formal educaiton but to learn how to make the rules work for you. That's why kids who go to public school do so very well. No privately educated kid would have gotten caught out by such an obvious rule - he or she would have parked around the corner and had a chain to attach the helmet to the bike, or an agreement with a friend to keep a helmet in their car, or had a big kit bag with them. They'd have also had a whole raft of responses regularly:
"I wasn't coming into school on the bike, I was meeting up with a friend and walked on to school."
"I brought my motorbike in for a service and left it parked there."
"I'm selling my bike and brought it in for someone to view it."
Blah blah blah.
There are so many ways to get around this I am really concerned for the pupil involved - has he no smartness at all?
Actually, I know exactly what happened here - he's got his eyes on a girl and wanted to show off, or knew what time some of his mates were coming in and wanted to make sure he was seen getting of his Aprilia. Fair enough - who wasn't the same at that age? But if you break the rules, you have to know how to get off them or live with the consequences. Boo-hooing to a national publication of "It's my rights to do whatever I want and it's not fair and I'm so persecuted and, like, it's my human rights and stuff" is just a bit crap really.
And anyway, my dad got expelled for riding his BSA Bantom along a school corridor to get it to the metalwork workshop to fix the brakes. He didn't complain!