What's the best thing to do for my brother in this situation? Someone please help and give me some advice..?

Well last year my younger brother (who was 11 at the time and is now 13) was getting in serious trouble at school due to his bad temper and the fact that he was the 'class clown' and always messing around and pulling pranks. He got excluded a couple of times and got into big **** with my mum and our step dad. My mum punished him an but my step dad wouldnt let it go. he would always threaten my bro when our mum was out, and swear and yell at him. He carried him over to a window and threatened to throw him out once. Anyway, one day he whacked my brother round the face. I wasnt there, but I came in the room when my brother yelled, and for ages after there was a huge bruise on his face.

Anyway! My bro moved in with our dad shortly after that.

My dad was homeless at the time, and was scrounging money to stay in b&bs. When my bro came to live with him, his girlfriend (who lives in a city that's really far away from mine) said they could stay with her. So they moved in. But this meant that my brother couldnt go to school and he eventually lost his place.

Hes still at my dads, and hast been to school since last september.

I'm really worried because he's supposed to be in yr 9, and starting his gcses this year.

I dont want him to miss out on the qualifications or miss all the learning and be a hobo for the rest of his life. Especially since he's extremely intelligent...well above average...

Basically, my brother and dad moved back to our city where they're staying with my nan.

My dad wont put my brother back in school because mine and my brothers (old) school is the only half decent one in the city. My dad thinks that he can get my brother a place at my school again (even though they kicked him out for bad attendance).

So my dad wont get him back into school because aparently if he's in a new school then he wont have any chance of being accepted back into mine.

It's been a few months since they moved back to the city and my dad hasnt even applied my brother for my school and is refusing to until he has a house for my brother.

I really want to get him back into school soon but I dnt know how?

He wont come to live with me, my mum, and step dad, because of the whole abuse thing...which I think is a perfectly good reason not to want to to be honest.

My mum tried to force him home, but he ran away back to my dad.

How can I get him back into school?

Should I tell a teacher at my school? Will they be able to get him back in at my school?

my mum called social services and they went to my dads to see, but he lied and said he was home schooling my brother and so they left. They came back again though, and this time he was violent and abusive towards them. So they left again....idiots.

So how can I get him back into school before he misses all his exams and its too late? Please help...I dont want him to **** up the rest of his life because of this.... :/