Oh FAB, I am not being unfair. I am just trying to suggest that things aren't always black and white.
Lots of children learn to tell their parents what they want to hear. Mine do, I am just good at spotting it now. I don't mean they are lying, it is just like political spin. However, children tend to only think of the moment, and don't always realise that what they are saying may have bigger consequences.
This is the first time you have said that he wants to leave school. You said earlier on the thread that you hadn't talked to him about it...
If you really want advice by coming on here, then you need to listen to what is being said, and not take offence, or try and justify your position by changing the facts. It doesn't help you in the end.
When it boils down to it, I am suggesting you talk to your DS, and give him permission to say whatever he needs to, without worry that he will get into trouble with your or your DH. From all that you have said, it really doesn't sound like he is being victimised. From where you are, if you have concluded that he is, then it might look like that - confirmation bias - you only notice information that supports your beliefs.
TBH, involving the Police may be a bad thing. They may investigate and that may make things clearer for everyone.