What does the acronym FBI stand for?

The acronym FBI stands for Federal Bureau of Investigation. This agency is a key component of the United States federal government and functions primarily as both a federal criminal investigative body and a domestic intelligence service. Established in 1908, the FBI is tasked with enforcing federal laws and addressing major crimes such as terrorism, organized crime, and cybercrime, among others.

The other options listed reflect common misconceptions about the agency's title. The term "Bureau of Intelligence" is misleading, as the FBI's mission extends beyond intelligence gathering to include a wide range of law enforcement activities. The phrase "Bureau of Internal Affairs" confuses the FBI with other entities focused on administrative oversight and ethics within governmental departments. Lastly, "Bureau of Inquiries" does not accurately represent the comprehensive role the FBI plays in criminal justice and national security. Thus, the correct title captures the full scope of the agency's responsibilities and functions within the Department of Justice.