Fundamentals

State Discretion: What It Is and What Limits It

By Daniel Sardá · Published on September 24, 2026

6 min read1,217 words

Public administration needs some room to respond to different cases. That room is legitimate only when it comes from law, rests on reasons, and remains open to review.

An authority must choose between two projects that meet the basic requirements for a licence, but only one can be approved. The rule sets the objective, the procedure, and several criteria, yet it does not determine in advance which project must prevail. May the official choose either one? No. The official may have room to decide, but that room is subject to limits.

State discretion, in the administrative-law sense, is the power that allows an authority to choose among several alternatives permitted by law. It exists because rules cannot anticipate every circumstance or prescribe a single response for every case. But it does not arise from an official's will: it must flow from authority granted by the legal order and be exercised for its intended purpose.

Key idea: Discretion is not a space empty of law. It is room for choice that law itself creates and defines.

Bound authority and discretionary authority

The difference becomes clearer when we ask how much the rule has already decided.

Where authority is bound, the administration establishes the facts and applies the consequence set out by the rule. If a person meets every specific requirement for a document and the law requires it to be issued, the administration cannot refuse because it prefers a different outcome.

Where authority is discretionary, by contrast, the rule leaves some element open: when to act, which measure to adopt, or which of several lawful alternatives to choose. The definition in the *Diccionario panhispánico del español jurídico* highlights precisely that the decision is not wholly predetermined and that the authority may select among different options.

The boundary is not always absolute. A single decision can combine bound and discretionary elements. The law may establish who decides, which documents must be considered, and which objective must be pursued, while allowing some weighing of relevant criteria.

Nor does interpreting a rule or assessing complex facts, by itself, amount to discretion. A question may be technically or legally difficult and still have only one correct answer under the applicable rules. Genuine discretionary choice exists when the law leaves more than one permissible outcome.

Why it is not the same as arbitrary power

Confusing discretion with arbitrary power erases an essential distinction. The former involves a choice authorized by law and capable of justification. The latter arises when power is exercised through whim, favoritism, or reasons unrelated to the authority's competence and purpose.

Two different decisions may be legitimate if they respond to relevant differences between cases. Likewise, two identical decisions may be arbitrary if the authority ignores circumstances it had a duty to consider. Equality before public power does not require automatic decision-making; it requires criteria that are relevant, consistent, and explainable.

Colombia's Constitutional Court, in Judgment C-031 of 1995, offers a useful formulation, though it belongs to a specific national legal system: discretionary authority permits a choice within certain limits and does not rule out review for defects such as lack of competence, false reasoning, or misuse of power.

Key idea: A decision does not become legitimate simply because the authority had room to choose. It must also show that it used that room for the proper purpose and on relevant grounds.

The limits that guide a decision

The precise mechanisms vary by country, but a comparative framework identifies several fundamental questions:

• Competence: Was the authority empowered to decide, and did it act within its jurisdiction?
• Purpose: Did it use the power for the public objective for which it was created?
• Facts: Does the decision rest on verifiable information and take relevant circumstances into account?
• Rights: Does it respect the guarantees and freedoms of the people affected?
• Reasonableness and proportionality: Is the measure connected to its objective and does it avoid unnecessary or excessive burdens?
• Procedure: Were the required steps and opportunities for participation or defence observed?
• Reasons: Do the stated reasons make the choice understandable and open to examination?

The Costa Rican Judiciary's *Usual Dictionary* identifies, within its legal framework, limits such as purpose, reasonableness, rights, and the unambiguous rules of science and technology. The last of these matters: a decision presented as “technical” is not insulated from scrutiny where verifiable knowledge rules out an option.

Giving reasons serves an especially valuable function. It requires a connection between the measure, the facts, the criteria, and public purposes, and lets the affected person understand what happened. Not every legal system imposes identical formal duties for every administrative act, but explaining the reasons makes review easier and leaves less room for hidden preferences.

An example: two applications, one authorization

Suppose a city has only one site available for a temporary commercial stall. Two applicants meet the minimum requirements. The rules require the authority to consider safety, impact on pedestrian traffic, and the quality of the operating plan, but they do not assign an automatic score.

The authority may compare the applications and choose. It would not, however, be legitimate to favor one person because of friendship, punish someone for their opinions, or invent a requirement after receiving the proposals. Nor would a vague invocation of the “public interest” suffice.

A defensible decision would identify the relevant facts, apply the same criteria to both files, and explain, for example, that one plan provides safer circulation and better cleaning measures. If the facts are false, the criterion contradicts the purpose of the rule, or the treatment was unequal without justification, the decision may be challengeable through the mechanisms available in the relevant legal system.

This example shows why eliminating all room for judgment is not a satisfying solution either. A wholly mechanical rule could miss important differences or become too rigid when new situations arise. The institutional challenge is not to pretend judgment is never needed, but to prevent public judgment from becoming personal will.

Reviewing decisions without replacing the administration

Review may operate within the administration itself, through independent bodies, and through judicial review, depending on the applicable legal system. The Venice Commission's *Rule of Law Checklist* connects the rule of law with defined limits on discretionary powers, access to review, and the provision of reasons for administrative decisions.

Review does not necessarily mean that a court selects the option it considers most convenient. It may assess competence, procedure, the accuracy of the facts, purpose, and the coherence of the reasons. If several lawful alternatives remain after that examination, the choice generally belongs to the authority entrusted with the power.

Key idea: Review protects the legality of the margin without erasing the legitimate margin that the rule conferred.

A margin compatible with freedom

State discretion creates an unavoidable tension. Public administration must respond to circumstances that a general rule cannot fully foresee; people, at the same time, need to know that their freedom, property, and projects do not depend on the mood of whoever holds office.

The answer is neither unlimited trust nor absolute rigidity. It is to grant powers clearly, define purposes and limits, require sufficient reasons, and maintain effective avenues of accountability and review. In this way, administrative flexibility can coexist with the predictability that general laws provide and with equality before public power: not as an official's privilege, but as public authority subject to law.