Tesla binding field

A was an electric field surrounding prison facilities, which prevented escape by use of teleportation by transmat or vortex manipulator.
One such field was placed around Stormcage Containment Facility; even after recovering her vortex manipulator, River Song had to escape the confines of the building, and therefore the field, to be able to escape. (GAME: The Eternity Clock)
Category:Human technology
Category:Prisons