What is the term for questioning someone closely, aggressively, or formally?

The term that describes questioning someone closely, aggressively, or formally is "interrogate." This approach often involves probing for detailed information, and it is typically employed by law enforcement or investigative professionals when trying to gather evidence or clarify facts surrounding a situation or a suspect.

In contrast, an "interview" usually refers to a more general conversation for the purpose of obtaining information, which may not carry the same intensity or purpose as an interrogation. "Confess" focuses on the act of admitting guilt or wrongdoing rather than the process of questioning. Additionally, "intercede" denotes the act of intervening in a situation, which does not relate to questioning at all. Thus, "interrogate" is the most fitting term for the context given, emphasizing the nature of the questioning involved.