Resolved questions
What do "held for questioning" and "held extreme views" mean?

Interesting question!

Each example uses a different example of "held."

In "held for questioning," the word "held" means detained or arrested. It means the police are keeping the person in the police station to ask him questions about a crime. In the U.S., being held for questioning is not the same thing as being arrested. When you are arrested you are charged with a crime (formally accused in court with judges). You can be held for questioning for a short time (less than a day) and then released. You might be arrested and charged later, or the police might decide you aren't a suspect. Other countries may use these terms differently, of course.

In "held extreme views," the word "held" simply means "believed." It means the person had extreme opinions -- opinions that many people might consider frightening or dangerous.