What action would classify as a felony related to obstruction of justice?

Threatening a peace officer is classified as a felony related to obstruction of justice because it directly undermines the authority and function of law enforcement. This action not only poses a risk to the safety of the officer but also disrupts the peacekeeping process and the legal system's ability to operate effectively. Threats can create a climate of intimidation, which can hinder investigations and the enforcement of the law, thereby warranting elevated legal consequences.

In contrast, delaying a peace officer's investigation can be serious, but it may not always rise to the level of a felony, depending on the circumstances. Complying with a lawful order is expected behavior and doesn’t obstruct justice at all. Providing false information, while certainly problematic, can vary in severity and may often result in misdemeanor charges unless the context elevates it to felony status. Therefore, threatening a peace officer stands out as the most serious offense within this context.