Nope, anytime someone is taken into custody it is the same as arrest.
If any WI LEO tries to detain anyone outside of the state, the officers may be immediately arrested for false imprisonment and attempted kidnapping. That's why the WI LEO will try nothing of the sort in attempting to force the legislators to return.
OK genius.
Explain the difference between civil and criminal law. Did you know that, if you are the witness to a crime, you can be arrested and held to insure that you show up for trial? Does that make seeing a crime a criminal act?
What about contempt of court? You can be arrested for that, and thrown in jail until the judge gets over his little snit, does that make it a criminal act?
My guess is that, as usual, you are going to ignore me. Or, as you did recently, you are going to read my post, realize you are wrong, and pretend that you always held the position that the Senators could be arrested, even though they are not charged with a real crime. You will also pretend that you never said anyone was charging them with a crime.
You will not fool anyone but yourself if you do.