Turf Protector Badge
From City of Heroes: Rebirth - Wiki
Description
Working with the government and your mirror self from another dimension, you stopped your evil doppleganger's plans to cause chaos and destruction throughout Paragon. That's your turf.
How to Get
Complete the Defeat your Evil Double mission given by Field Agent Keith Nance.
Notes
The Turf Protector badge is awarded to characters of the villain and rogue alignments. The same badge on heroes and vigilantes is called The Fairest.