My 15 is hanging around with a group of boys on the estate and has been for just over a year now, his behaviour has changed considerably attitude and school life getting detentions nearly every day and not concentrating in lessons I know he had be tempted with weed a while ago and he said he tried it a little but didnt like it, a friend of his who is 14 admitted to me that he has a problem with it and can't stop it, Im now concerned about my son who says he isnt doing it but i think he is, cant stop him from going out permanently because its society of today and its everywhere but don't know what else to do, its really hard.