Apprenticeships, Skills, Children and Learning Bill

I have a couple of brief questions on this clause. First, how are guided learning hours to be policed? It is all very well to have this number sitting there, but as the noble Baroness will remember, one successful state school has been pioneering GCSEs in a term and successfully getting the qualification based on apparently a much reduced number of learning hours. Is the number of guided learning hours to be enforced or applied in schools, and if not, what is the point of them? Secondly, what is subsection (12) all about?