Insurrection (Judge Dredd: The Mega Collection, #54)

Mega-City One controls a number of off-world colonies, where humanity has headed out into the stars to seek new and more peaceful lives on other planets, with many of these remote outposts providing Earth with much needed raw materials. But K Alpha 61 is rebelling against Justice Department's restrictions, declaring its independence and renaming itself Liberty. The Judges will not let that stand - this kind of insurgency needs to be stamped on without mercy...