The Federal Bureau of Investigation (FBI) is a federal law enforcement agency within the United States Department of Justice. It was originally established on July 26, 1908, as the Bureau of Investigation to address growing complexities in crime, such as land fraud and corporate malfeasance, during the presidency of Theodore Roosevelt[4][5]. Initially, the Bureau had a small team of specialized agents, drawing from their experience within the Department of Justice[4]. Over the years, the FBI has expanded its roles and responsibilities significantly. It was renamed the United States Bureau of Investigation in 1932 and officially became the Federal Bureau of Investigation in 1935[7]. Notable roles include enforcing federal laws, investigating white-collar crimes, handling national security issues, and combating terrorism[1][7]. Key achievements include the establishment of the National Crime Information Center in 1967, which coordinates and assists local, state, and federal law enforcement[7]. The FBI has played a crucial part in addressing societal changes and legal developments. For instance, the passage of the Civil Rights Act in 1964 expanded the FBI's investigative jurisdiction into areas like racial discrimination[7]. In recent years, the FBI has focused on combating cybercrime and terrorism, particularly following significant attacks like those against the World Trade Center in 1993[7]. Recent events have highlighted the FBI's ongoing efforts to adapt to emerging threats, including cybersecurity and international terrorism. Today, the FBI remains a central authority in U.S. law enforcement, working to protect the nation from domestic and foreign threats while ensuring the constitutional rights of citizens are respected. Its operations are guided by strict guidelines to prevent abuses of power, reflecting its evolution from its early days as a small investigative force to its current status as a major national security agency[7].