Limbo Atrophier
Standard equipment on all Type
89 (formerly known as Type
102) TARDISes,
this device
ties in with the Telepathic Circuits and the State of Temporal Grace Circuits
to "freeze" any intruder whose bio-rhythms don't correspond to pre-programmed list of "friends." The victim is trapped
in a spare dimensional stasis field,
which can only be deactivated from the Control Console. Depending on the setting the intruder might be able to speak.