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The arm that knocks

Public Security

“Every neighbour is a witness”

Public Security is the branch of Attack on Titan's mainland state that polices the people it confines — not an army, but the officials who decide which of their neighbours has stopped being tolerable.

It works the way this kind of branch always works: on paperwork, on informants, and on the certainty that nobody it takes will be asked about afterwards. The story shows it doing its job in an ordinary voice, which is the most frightening thing about it.

Also known as Public Security Authorities · the security branch · Marleyan Public Security

Base
The internment zones and the capital
Role
Surveillance and punishment
Type
Political police

The record

Role in the story

What Public Security is

Public Security is Marley's internal security apparatus, and its assignment is the Eldian population: who is inside the fence, who left it, who they spoke to and what they said. It is a civil branch with a police rank structure, not a military one, and it operates on the ordinary machinery of a modern state — files, permits, interviews, informants.

Its real power is not the power to arrest. It is the power to reclassify. A resident of the district is tolerated for as long as the branch says so, and the branch does not have to explain the day it stops saying so.

How it actually works

The branch does very little of its own watching. It works the district through the district: a permit that can be withdrawn, a family that can be reclassified, a neighbour who would like to stop being suspected. Nearly every case the story shows begins with somebody inside the fence talking.

When it does move, the punishment is designed to be an example rather than a sentence. What it does to the people it takes is not hidden from the population; it is demonstrated to them, in a form that ensures nobody who hears about it will ever be able to unhear it.

Why it matters in the story

Public Security is where the story locates the actual violence of the mainland. The nation's soldiers fight a war a reader can argue about; the branch does something that admits of no argument at all, to people who have done nothing, in front of their families.

It is also the reason the story's most consequential character becomes who he is. One officer of this branch, following procedure with his state's full approval, produces the grief that crosses the sea and reaches the walls a generation later. The series is precise about that: what this took was not a monstrous exception but a job description.

The regiment

Hierarchy and members

0 revealed · 2 sealed

No members revealed yetAdvance your episode to discover who serves here.

Turning points

Key events

0 revealed · 3 sealed

No events revealed yetAdvance your episode to unseal this faction's history.

On the map

Key places

0 revealed · 3 sealed

No places revealed yetAdvance your episode to map where this faction operates.

Standing

Relations with other factions

0 revealed · 3 sealed

No relations revealed yetAdvance your episode to see who they answer to and who they fight.

Across the story

How the faction changes

0 revealed · 2 sealed

Nothing has changed yetAdvance your episode to follow how this faction is transformed.

Common questions

Frequently asked

What is Public Security in Attack on Titan?

Marley's internal security branch — a political police force whose assignment is the Eldian population of the internment zones: watching it, recruiting informants inside it and punishing whoever it decides has become a risk.

What does Public Security do to the Eldians it arrests?

Its signature punishment is not execution but exile: the prisoner is turned into a mindless Titan and put on the island, which removes them, terrifies everyone who hears about it and costs the state nothing.

Is Public Security the same as Marley's army?

No. The army fights the nation's wars abroad; Public Security is a civil branch pointed inward, at the country's own confined population. They answer to the same state and almost never to each other.

Other factions

All 2 members of Public Security — spoilers

Complete spoiler archive

Complete roster: Public Security

This index lists every member of Public Security, including those who haven't appeared at your episode yet. Open a dossier only when you're ready to cross that spoiler boundary.

Complete arc

  1. Revealed by S3·E20

    A door, and then a cliff

    The branch arrives in the record as a knock and a polite question, and leaves it having done the thing the story never lets the reader look away from. What happens to a child of the district is presented as procedure, and the officer responsible is not concealed.

  2. Revealed by S3·E20

    Everyone in the room was an informant

    The cell the branch spends years hunting turns out to have been penetrated from the beginning, and the arrest is not a raid but a room closing. What follows is the branch's preferred sentence: not death, but disappearance into the thing the state is most afraid of.

Relations with other factions

  • Marley — It is the state's own hand inside the district, and it takes its definition of a threat from the politics of the moment rather than from anything a resident does.
  • Internment Zone — The fence is a rule; this branch is what makes it a fact, from inside, using the residents' own fear of being next.
  • Eldia Restorationists — Hunting the cell is the branch's standing assignment, and it wins by being patient enough to let the cell recruit its own betrayal.