This one is ds and it still really bothers him now to the point he's terrified it'll come up and prevent future job opportunities.
Ds had to move schools after he was victim of knife crime at his previous one (while other unfair story)
Some boys there instantly started to pick on him as the new kid. Ds was an easy target as was petrified of school after what he'd been through.
3 weeks in I get a call from the school to say ds had called another lad a racist name. I was surprised as ds isn't like that but they were adamant and he was being excluded for a period of time.
I drove to pick ds up and didn't even give the poor lad a chance to say hello before giving him absolute hell and continuing all the way home. Get home and a pale and terrified looking ds slopes off to his room.
An hour later comes out and asks me what the word he's accused of using means. Well - poor sod got an even bigger earful about using words he doesn't know what they mean blah blah. Off he slopes again after asking me if he really could be arrested as I've told him.
Over dinner I decide to act normal and chat thinking point made. DS is clearly remorseful I think as quiet and did look so very upset.
Then he suddenly asks me why he's been accused of saying this in X lesson to a black child (I wasn't told who and ds said he didn't know who) when there aren't any black children in his class. Or any of his classes.
So confused myself at this point I ask ds what happened during that lesson. He gives a completely different story of being in toilets and these lads throwing his stuff etc. He said as he left school he saw them talking to the teacher.
So following day I speak to school and explain I absolutely do not condone what ds did if he did it but ..... the only child in question it could have been isnt in any lessons with him.
This is acknowledged but they go on to say if any racism is reported they must deal with it and report to La - and yes apparently even if what ds is saying is true 
In year 9 these boys admitted to making it up and finding it hilarious ds got into massive trouble. A teacher overheard this but ds was told "it's over now"
Not for ds it isn't 
Same teacher have these children a detention when I pushed it for writing on the school whiteboard "miniweird is a retarded spastic" (ds has a physical disability and autism)
Apparently disability hate crime isn't as serious 