Grammar school Year 12 admissions policies tend to set minimum grade thresholds, which apply equally to internal and external applicants. Internal applicants that meet the criteria are, of course, guaranteed a place. However, to manage demand for external applicants, they need to use oversubscription criteria. Rather than using distance or lottery like non-selective schools, its common to rank applicants by average GCSE point score. But surely this is a breach of clause 2.6 of the Admissions Code which says that sixth form academic selection criteria "must be the same for both external and internal places"?