CSI: Wizard CIty
By any means necessary
The LAPD and NYPD have their SWAT teams. Wizard City has its Border Patrol. The Guardian deploys her units with extreme prejudice against any incursion that might threaten the outside world, or the continued existence of the city. They will burn buildings to the ground, kill children, and drown puppies safe in the knowledge that the end thoroughly justifies any means.