The author's English proficiency is average, and they failed CET-4.

The information provided here is gathered from external sources and translated using a translation software.

There may be inconsistencies with other sources, so please refer primarily to this book. Thank you.

FBI internal hierarchy (from highest to lowest):

FBI Washington Headquarters: Director — Deputy Director — Headquarters Office Director, also Special Adviser to the Director — Deputy Director of Headquarters Office — Assistant to the Deputy Director — Executive Assistant Director — Deputy Executive Assistant Director

Large Regional Field Offices (such as New York, Los Angeles): Assistant Director (Head of Field Office) — Deputy Assistant Director (Deputy Head of Field Office) — Special Agent/Senior Lead Agent in Charge (Head) — Assistant Special Agent in Charge (Team Lead) — Supervisory Special Agent (Team Leader) — Senior Special Agent (Senior Field Agent) — Special Agent/Official Agent (Regular Field Agent) — New Intern Agent

Smaller Regional Field Offices (such as urban area... regional offices): Assistant Special Agent in Charge (Team Leader) — Supervisory Special Agent (Team Leader) — Senior Special Agent — Special Agent/Official Agent — New Intern Agent

FBI Departments:

Headquarters:

Finance and Facilities Department, Information Management Department, Internal Threat Office

Inspection Department Chief Information Officer Office, Congressional Affairs Office

EEO Affairs Office, General Counsel Office, Integrity and Compliance Office

Inspector General's Office, Professional Responsibility Office, Public Affairs Office

Resource Planning Office, Diversity and Inclusion Office

Local:

A-Homeland Security Division:

Counterintelligence Department — Work Content: 1. Counterespionage. 2. Counterintelligence operations.

Counterterrorism Division — Work Content: 1. Protect homeland from terrorist attacks.

Terrorist Screening Center — Work Content: 1. Ensure the safety of the American people by sharing terrorism-related information among the U.S. government and other law enforcement agencies.

Weapons of Mass Destruction Bureau — Work Content: 1. Investigate and gather intelligence on threats and incidents related to WMDs to prevent attacks and respond when attacks occur.

Main includes: 1. Chemical (toxic or poisonous chemicals) 2. Biological (biological agents or toxins) 3. Radiological (releasing dangerous levels of radiation or radioactive materials) 4. Nuclear weapons or explosive devices (explosive bombs, hand grenades).

B-Crime, Cyber, Response, and Services Division (where the protagonist belongs):

Criminal Investigation Department (where the protagonist belongs) — Work Content: 1. Mass killings, sniper murders, serial killings. 2. Gangs, crimes against children, human trafficking/involuntary servitude. 3. Bank robberies, jewelry and gem theft, international violent crimes.

Major Incident Response Team — Work Content (PDF): 1. Hostage Rescue Team - HRT. 2. Special Weapons and Tactics Team - SWAT (Previous department Reesi belonged to). 3. Crisis/Hostage Negotiation Unit - CUN. 4. Behavioral Analysis Department - BAU (department featured in the crime psychology television series). 5. Counter-IED Department - Bomb Disposal

Cyber Division — Work Content: 1. Collect public reports on internet crime, freeze assets. 2. Operation centers and surveillance platforms provide round-the-clock support for tracking incidents. 3. Rapid communication with field offices nationwide.

International Business Department — Work Content: 1. Located within the U.S. embassy or consulate in a foreign country

Victim Services Department — Work Content: 1. Inform, support, and assist victims to navigate the aftermath of crime and criminal justice processes with dignity and resilience. 2. Ensure victims of crimes investigated by the FBI have opportunities to receive services and notifications as required by federal law/DOJ Victim/Witness Assistance Guidelines.

C-Ministry of Science and Technology:

Criminal Justice Information Services — Work Content: 1. Identity history summary checks. 2. Uniform Crime Reporting National Incident-Based Reporting System. 3. National Instant Criminal Background Check System. 4. Law enforcement records management system

Lab Division —

Operational Technology Division —

D-Intelligence Division:

Intelligence Sector (previously where Reesi was assigned) —

Partner Engagement Office —

Private Sector Office —

E-Information and Technology Processing Division:

IT Applications and Data Division —

IT Infrastructure Division —

F-Human Resources Department:

Human Resources Division —

Security Division —

Training Division —

Note: [Uniform Crime Reporting Program] — Provides reliable statistical data for law enforcement agencies, and also provides information for students, researchers, the media, and the public in the field of criminal justice. The program has been providing crime statistics since 1930. The UCR program includes data from more than 18,000 cities, universities and colleges, counties, states, tribes, and federal law enforcement agencies. Agencies participate voluntarily and submit crime data through state UCR programs or directly to the FBI's UCR Pro.

[National Incident-Based Reporting System] — The National Incident-Based Reporting System (NIBRS) aims to improve the overall quality of crime data collected by law enforcement agencies. It captures details of every single criminal event, as well as separate crimes within the same incident.