Energy maintenence cost for facilities is halved at all of your bases
If use of police is allowed under the current social model, all of your
bases are considered to have an extra police unit
This is a late-game project that comes along right when
you need it ... if you need it at all. If you're an agressive base developer,
you'll find that as you reach the top of the tech tree, and keep building new
facilities for your bases, sooner or later they'll start to get expensive. This
project will allow you to toss everything including the kitchen sink into your
bases, and still stay in a positive cash-flow situation.
The free police power is handy for those late-game offensive
pushes. Realistically, however, you'll need a Police rating of +2 or better
to get any good out of it - note that the project dosen't actually change your
Police rating (although this project goes well with the Ascetic
Virtues), since you're probably keeping one or two defensive units permanently
stationed in your base anyway. If you're the belt-and-suspenders type, who habitually
keeps three or more units stationed permanently in each base, then the "virtual
police" granted by this project will do nothing for you, since police units
max out at three.