Academies Bill [Lords]

I am fascinated by the concept that certain processes will enable a grammar school that becomes an academy to manoeuvre around the selection rules. According to the Bill, the majority of pupils will come"““wholly or mainly… from the area in which the school is situated.””" That could be a very successful grammar school currently drawing its pupils from a wide area. Would the criteria be the same for an existing grammar school that becomes an academy, or would there be a specific designation? Would they be treated the same as any other school, consequently losing quite a number of pupils because it will undoubtedly be the case that when a grammar school becomes an academy without the prerequisite of being able to select under this system, it will be inundated with pupils and a lot of existing pupils will probably be forced to leave the school? I therefore ask the Minister to explain how this will work.