"Well, if you're worried about the Amperage being taken, why not send it away? It's hardly useful in port, what with the lack of a good firing angle, and I'm certain that there are dozens of useful missions it could be put to could use on. That being said, places to ward against teleportation would be the places where the greatest tactical damage could be done in the shortest time... specifically, places like the mage barracks, the bedrooms of the commanders, that sort of thing. We can repair things easily enough... but people are hard to replace, and more fragile then most of the things we have; even a few teleporting assassins could conceivably cause great havoc."