Oan Sciencell Reception and Foyer
The only way in and out of the Sciencells all criminals are brought here before being shown to their cell in order to be "checked in". After the disappearance of Earth's Green Lanterns, the Guardians began allowing humans to bring any prisoners they believed to be too much for the human penitentiary system; if they do somehow manage to escape from here, the next place they are likely to end up is the Phantom Zone.
Admittedly, due to their belief in the Sciencells, the Guardians do not assign many Lanterns to guard them.
