Please be aware that presently the American federal government seems to be systematically arresting some protesters without doing any paperwork (and therefore no public record, except for the testimony and video of victims and witnesses.)
Here is a HN discussion about it: https://news.ycombinator.com/item?id=23866926 | https://www.opb.org/news/article/federal-law-enforcement-unm...
> Pettibone said he was put into a cell. Soon after, two officers came in to read him his Miranda rights. They didn’t tell him why he was being arrested. He said they asked him if he wanted to waive his rights and answer some questions, but Pettibone declined and said he wanted a lawyer. The interview was terminated, and about 90 minutes later he was released. He said he did not receive any paperwork, citation or record of his arrest. [...] In a statement, the U.S. Marshals Service declined to comment on the practice of using unmarked vehicles, but said their officers had not arrested Pettibone. “All United States Marshals Service arrestees have public records of arrest documenting their charges. Our agency did not arrest or detain Mark James Pettibone.”
There are also a few videos confirming at least some of those details; namely camouflaged men, faces covered, pulling protesters into unmarked vehicles. In one of the videos, the men with guns tell other protesters that they'll be shot if they try to follow the unmarked vehicle. The local PD claimed they didn't arrest anybody.
https://vidmax.com/video/196124-sdpd-toss-protester-in-unmar...
> One cop was heard saying "If you follow us, you will be shot." San Diego police reported the protest was the biggest and most peaceful protest in San Diego so far, and nobody was arrested.