> ## Documentation Index
> Fetch the complete documentation index at: https://docs.didit.me/llms.txt
> Use this file to discover all available pages before exploring further.

# 4-Eyes Review

> Require a second officer to approve or reject every resolution on a blueprint, with the proposed outcome staged until a different reviewer signs off.

4-eyes review adds a second, independent sign-off before a resolution takes effect, a standard segregation-of-duties control for higher-risk investigations.

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## Setting it up

On the maker blueprint, set **4-eyes review** to a **checker blueprint**. Setting this field is what turns 4-eyes on for the maker blueprint, there is no separate toggle.

## How it works

1. An officer on the maker blueprint resolves a case as usual (false positive or valid threat, plus a note if required).
2. Instead of closing, the case status stays **Open**, the proposed resolution is staged, and the case moves into the **checker blueprint's** queue. The case timeline logs `Submitted for approval`.
3. A checker reviews the case's Overview tab, where a dual-control banner shows **Approve** and **Reject** actions.
4. **Approve** applies the staged resolution: the case becomes **Resolved** with the original resolution and note, credited to the officer who submitted it. The timeline logs `Approval granted` then `Resolved`.
5. **Reject** clears the staged resolution and returns the case to the **maker blueprint**. The timeline logs `Approval rejected`, and the maker is notified.

<Warning>
  The officer who submitted the resolution cannot approve or reject it themselves, enforced server-side. Attempting to do so returns a 403. (Approving or rejecting a case with no resolution pending approval returns a 409.)
</Warning>

## Notes

* The checker blueprint's own assignment, escalation, and content settings apply while a case is in its queue, it is a real blueprint, not a special mode.
* A case can only have one resolution staged at a time; requesting more information (**Awaiting user**) is blocked while a resolution is pending approval.
* 4-eyes pairs with [required resolution notes](/console/case-management/blueprints#general-settings): turn both on for your highest-risk blueprints to require both a documented rationale and a second reviewer.