1. The Question

How should discretion be handled in immigration systems?

Discretion is often treated as a problem.
It is seen as a source of arbitrariness, inconsistency, and unfairness.

But eliminating discretion entirely is neither realistic nor desirable.
Immigration decisions must account for complex, individual circumstances.

The question, therefore, is not whether discretion should exist,
but how it can be structured so that it does not produce distrust.


2. What Is Discretion?

In this model, discretion is defined as follows:

Discretion is the decision-making space within which an institution can interpret and apply rules beyond fixed criteria.

Discretion exists because rules are incomplete.
No system can anticipate every possible case.

Therefore, discretion is not a failure of design.
It is a necessary feature of any functioning system.


3. The Problem: Unstructured Discretion

Discretion becomes problematic when it is not structured.

Unstructured discretion produces three outcomes:

  • Opacity: Decisions cannot be explained
  • Inconsistency: Similar cases receive different outcomes
  • Unpredictability: Future decisions cannot be anticipated

These are precisely the conditions that generate distrust.

In other words:

Discretion does not create distrust.
Unstructured discretion does.


4. The Need for Control

If discretion cannot be eliminated, it must be controlled.

However, control does not mean eliminating flexibility.
It means making the exercise of discretion observable and bounded.

This requires a shift in perspective:

  • From controlling outcomes
  • To controlling the decision-making process

5. Structuring Discretion

To prevent discretion from producing distrust,
three forms of control are necessary:

1. Procedural Transparency

The decision-making process must be visible and explainable.

Not every detail needs to be disclosed,
but the logic of the decision must be accessible.


2. Reason-Giving Obligation

Decisions must be accompanied by reasons.

These reasons must be:

  • Specific
  • Relevant
  • Understandable

Without reasons, discretion becomes indistinguishable from arbitrariness.


3. Consistency Mechanisms

Institutions must ensure that similar cases are treated similarly.

This requires:

  • Case comparison frameworks
  • Internal review systems
  • Accumulated decision records

Consistency is not automatic.
It must be actively produced.


6. Discretion and Explainability

These control mechanisms lead to a broader principle:

Discretion must be explainable.

Explainability does not eliminate discretion.
It makes it accountable.

This resolves a key tension:

  • Flexibility is preserved
  • Trust is maintained

7. Implications for Immigration Administration

In many immigration systems, discretion is extensive
but insufficiently structured.

As a result:

  • Decisions appear arbitrary
  • Outcomes are difficult to predict
  • Trust deteriorates

Improving trust does not require reducing discretion.
It requires making discretion visible, reasoned, and consistent.


8. A Necessary Clarification

A common concern is that explaining decisions may constrain officers
or expose the system to manipulation.

However:

  • Discretion without explanation invites abuse
  • Explanation without boundaries invites exploitation

The solution is not to choose one over the other,
but to design bounded explainability.


9. Toward Process-Based Governance

The core insight is this:

Trust depends not on what decisions are made,
but on how they are made.

By structuring discretion through transparency, reason-giving,
and consistency mechanisms,
institutions can transform discretion from a source of distrust
into a component of trust.

*This post is positioned as a chapter that makes up the table of contents in the Balanced Coexistence Model.

Japan/World Immigration News