Not American but are law enforcement required to present the warrant to a person who is not the individual named in the warrant? It would make sense to present it to their attorney but this gentleman seems like a third party.

You don’t have to physically produce the warrant as long as it’s been issued.

But there's no way for the one affected to know one was issued unless it's produced.

Correct, the law requires you to trust law enforcement.

Sort of crazy that questioning the existence of something that may not exist, when there isn't physical evidence of it existing, can get you detained. Wait a second, I think we've seen that before...

Factually and obviously false.

It takes a simple google to figure out that you are incorrect. If an arrest warrant exists, police need to produce an arrest warrant as soon as possible but not at time of arrest.

How does the police _justify_ the arrest then, to the ones being arrested, their family, and to their counsel?

How do those know what happens next, and where?

You know, basic questions, even more critical in a democracy.

You cannot force a citizen without a legal reason to do so. If you don't have a warrant (or a legitimate reason at the time of arrest), you're legally naked.

Nothing about what you said matters. The police are legally allowed to arrest a person without presenting an arrest warrant, if the arrest warrant exists. Then after they are brought to jail, they will present to warrant to the person arrested or their counsel. The family is owed no information from the police. That's not how it works.

Thanks for exemplifying the problem: the culture of might over right (I don't know if you realise how deep the "nothing about what you said matters" runs).

The family is totally owed information from the police and the state. That's exactly how it must work in a free, democratic society.

There’s a lot in the law that won’t be necessarily obvious or intuitive to you, that doesn’t mean you should assume you know what you’re talking about. Go ahead and look it up rather than commenting about something you don’t understand.

The 4th amendment reads easy enough to me. Yet, I understand that case law might be debatable. And that deep political forces are at play.

Still, a state were police can operate (out of probable cause) without judicial support is just a police state.

Warrants are fairly uncommon when it comes to arrests.