The Bill is here:
https://www.parliament.scot/bills-and-laws/bills/hate-crime-and-public-order-scotland-bill
The first part is about 'aggravated offences', which as far as I can see (I'm not a lawyer, police, nor anyone with any expertise) is roughly equivalent to existing Hate Crime laws, in that it applies to criminal offences that are aggravated.
The second part is the
PART 2
OFFENCES RELATING TO STIRRING UP HATRED
And that's the really fucking mad bit.
To whit:
"1) A person commits an offence if—
(a) the person—
(i) behaves in a manner that a reasonable person would consider to be
threatening, abusive or insulting, or
(ii) communicates to another person material that a reasonable person would
consider to be threatening, abusive or insulting
...
2) A person commits an offence if —
(a) the person—5
(i) behaves in a manner that a reasonable person would consider to be
threatening or abusive
...
For the purposes of subsections (1)(a)(i) and (2)(a)(i), a person’s behaviour—
(a) includes behaviour of any kind and, in particular, things that the person says, or otherwise communicates, as well as things that the person does,"
My bold. The 'reasonable person' bit was added in, I seem to recall that during the Bill's passage through Scotgov. But it's utterly vague, and I can find no mention of 'reasonable person' in the police guidance.
So it seems that this is something that would be decided in court.
Humza's defence was that nobody would be jailed because it would be discussed in court first. So that's fine, because arrest and a court case is just no bother at all for most people.