No, you get banned for running from CONCORD. It basically ensures that "safe" sectors stay that way. CONCORD is just the in-game representation of this.
Correct.
Plus, it's damn-near impossible to escape from CONCORD anyway. If you unlawfully open fire on another player in High Security space you'll find a flotilla of huge police ships appearing almost instantly. Most players can't withstand even a single barrage from those CONCORD ships, so ship-loss is practically guaranteed.
