School mentioned expulsion - WWYD?

[Receptive1]

need some honest perspectives here please…
DS 12, has autism and FPD and has not been enjoying secondary school as it’s generally overwhelming due to his needs, but we are taking it a day at a time and getting there. Today he came home upset after being accused of using a derogatory term towards another pupil in his class. He strongly denies this, and while no child is perfect, dishonesty is not one of his traits. He generally finds lying confusing and pointless due to his autism.
He said the teacher told him that it could not be proved either way ir
it happened or not, but that such an incident could potentially lead to exclusion. As a parent, this is obviously very serious, and I haven’t received any direct communication from the school about what was reported or how it was handled.
I’m particularly concerned about how my son would be protected if further allegations from this child are made in the future. Should I contact the school, and if so to say what? Secondary school is a new world to me as had this happened in primary I’d definitely have been made aware of it at the end of the day at pick up. TIA.

The boy's autism is very important here.

My daughter had no real clue how to behave socially at school, so she used various strategies- one was role playing and copying others. Her favourite TV show at the time was Hannah Montana and she basically acted as her at school, which got her into loads of trouble due to the eye rolling sassiness which she used in inappropriate situations. But anyway, it is common for autistic children to do stuff like this, so a child might hear a popular child use the word and be rewarded for it by his friends finding it funny, so he decides to use it too, but in the wrong context and without the kudos.

This is why autistic kids need more help and not just given a lecture. Again, the boy has got it wrong, because instead of hearing a generic telling off, he thinks he's about to be expelled.

This is a speech and language issue. School should be doing more to help.

Mango?

Apparently it was “mgo”.
Mango?
I honestly don't know what you mean?

M, something, something, g o ?

What is the word, I’m stuck?! Mango? Does it definitely have an o on the end?

Replace the a with an o. It’s a disgusting word to be used.

There is an offensive word like that but it doesn’t end with an o.