Generally, I share these concerns. At the same time, this story is very new. In any case, looking at the primary sources is important. See https://www.courtlistener.com/docket/69943125/united-states-.... I'm not a lawyer, but the criminal complaint does appear to be, more or less, within the realm of normal.

Now, putting aside that complaint, the decision to arrest Dugan is questionable for sure. My current understanding is that such an arrest is only done if the suspect is a flight risk.

It is probably wise to give this at least a few hours of detailed analysis by legal experts before we jump to conclusions or paint it with a broad brush.