Schools Bill [HL]

My Lords, to my mind, the various assurances the Minister has given present a further complication. If she is able to give reassurance to the noble Duke about a particular type of school, which is pretty well defined, being able to guarantee its continued independence away from a multi-academy trust, as it were, what does that say to other schools which may have particular characteristics? What is the defining characteristic that distinguishes schools which can remain if they want to from those that cannot?