It also develops other themes that Moore first explored in his book, The Commons. The ideas running through his work are about institutions, government and power.
In this case the sealed, regulated and artificial environment, which could sustain its workforce for extended periods of time, is redolent with threat and crisis.
Yet the pictures of ordinary rooms - part military, part civilian - are full of chilling clarity and this labyrinthine world mirrors the very ordinary way in which the maze of international machinations can lead to crisis.
Part of a large secret network operated by the Ministry of Defence, it is astounding that Moore was allowed such access to observe this empty yet ever-ready work space - silently waiting for those who would take the country through the most extreme national emergency.
It is however not so surprising that small areas of some of the images have been digitally altered at the MoD’s request. This was to protect what the MoD considered to be sensitive information. Clearly, this did not include the colour of the carpets or the fact that bedroom walls remain un-plastered.
