If you're caught in the commission of a crime you don't need warrants. Everything I've read any other people in Portland that were detained were released. I'll admit that's bad . . . but Bidenbot ProgFacist Incel Supporters are trying to paint a false narrative that everyone arrested had not committed any crimes and/or were not caught in the act.
Destroying Federal property is a Federal Offense. Burning down minority businesses in addition to being arson on the local/state level, could also be classified as a hate crime on the Federal level.
Based on the video from last night, DHS would have legal standing to arrest many more people, and I don't believe that they did.
Just admit it guys, you want violence, you want things to burn. Sad