Gosh after 6 pints he was far over the
limit, he and his friends were idiots together especially him, to drive or let him drive. Not even a morning after heavy night accidental drink drive that was ill judged. Proper full on driving when he knew he was drunk.
However he has several nasty injuries and is in pain, there's been natural consequences and a horrid criminal conviction coming. And a written off car. He was lucky he didn't kill someone.
If he is suitably remorseful and hugely self critical taking full responsibility, about it, then at this time, no matter how ashamed you are of him, I'd say he needs his mum, your endless love and understanding. He needs you taking him to and from police station, pls make sure solicitor knows to insist on breaks and to keep it short for police interview given he has a head injury & pain levels . How bad is his head injury?
It's easy for others to condemn him right now, for everyone to pile on him- and he'll face that in court where the magistrate will dress him down- but I'd try as his mum to be supportive, remind him you all love him no matter what, remind him to take this as a wake up call- a learning opportunity to make better decisions always in the future over important things like this on illegal or dangerous idiotic things- but that you are there for him. Otherwise his only relief will be the other drunk idiots who encouraged him and we know their judgement is shite too.
I worry when young adults make idiotic decisions, which cause huge terrible consequences- with deserved condemnation all round- it can also cause a spiral into severe depressive state.
Please make sure he has you and a few sensible non judging others to listen to him & love him, so he doesn't hit too low a point that he feels he can't get back up from. He clearly has consequences already.
Way down the line, I'd be talking about bus routes and walking in the rain "you damn idiot 😁" if and when in the future he is recovered enough to go out independently, so that it doesn't become the end of the world. It WAS bloody stupid, dangerous and all that but not genocide. He's still your same lovely son, despite this. Ant McPartlins Mum didn't wear a cloth sack when her son (equally condemnable) ) drunk drove and caused a (more minor) accident.
You're not a bad mum, it was his terrible decision to drink drive and he will suffer because of it. There doesn't need to be a complete pile on (unless he starts treating it lightly, then verbally hit him with Mumwrath!)