Nullum Effugium

Commonly used by the Department of British Magical Law enforcement, this wards an area against apparition or disapparition. No one may arrive in the warded area via apparition/disapparition, nor may any creatures within the warded area cast the spell. Any attempt to do so results in the typical apparition/disapparition effect, except the creature stays exactly where they are.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the radius of the sphere increases by 60 feet for each slot level above 5th.