Surrounded (包囲, Hōi) is the 52nd chapter of the Kiseijuu manga series, written and illustrated by Hitoshi Iwaaki.
As the Military finish their preparations, they begin to surround the City Hall. They first round up all the people inside the building, and begin evacuating 7 at a time. While they're being evacuated, they will also be scanned. Using this method, they are able to identify their first target.