The Legal Relationship
From the Diritto pubblico curriculum
TL;DR
The legal relationship is the core concept in diritto pubblico, defining the bond between two or more subjects (at least one being public) where one has a power and the other has a corresponding duty or burden. It's how the state interacts with individuals and other entities, creating specific rights and obligations. Understanding its structure helps you analyze how public law operates in practice.
1. The Mental Model
Imagine a seesaw. On one side, there's a public entity (like a Municipality) with a specific power. On the other, there's a private citizen or another entity with a corresponding duty or burden. The legal relationship is the seesaw itself, connecting them and defining their interaction under the law.
2. The Core Material
In diritto pubblico, the legal relationship (rapporto giuridico) is fundamental. It's a connection, regulated by law, between at least two subjects. Crucially, in public law, one of these subjects must be a soggetto pubblico (a public entity like the State, a Region, a Municipality, or another public body).
Elements of a Legal Relationship

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Soggetti (Subjects): These are the entities involved.
- Soggetto attivo (Active subject): The one holding the potere giuridico (legal power or right). This is often the public entity in public law, but can also be a private individual asserting a right against a public entity.
- Soggetto passivo (Passive subject): The one on whom a dovere giuridico (legal duty) or an onere (burden) falls. This can be a private individual, another public entity, or even a collective body.
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Situazioni Giuridiche Soggettive (Subjective Legal Situations): These are the specific positions that subjects hold within the relationship. They define what each subject can or must do.
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For the Active Subject (Soggetto Attivo):
- Diritto soggettivo (Subjective right): A direct and immediate interest protected by law, allowing the holder to demand something from another. In public law, these are often protected against public administration actions (e.g., the right to health, property).
- Interesse legittimo (Legitimate interest): A specific interest connected to the correct exercise of public power. You don't have a right to a specific outcome, but you have a right for the public administration to act lawfully and transparently when affecting your sphere. If the administration acts illegally, you can challenge it. This is a cornerstone of Italian public law.
- Potestà (Power/Authority): A power exercised in the interest of another or a collective interest (e.g., parental authority, administrative power). It's a power that comes with a duty to use it correctly.
- Diritto potestativo (Potestative right): The power to unilaterally modify another's legal sphere without their consent (e.g., a right to withdraw from a contract).
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For the Passive Subject (Soggetto Passivo):
- Dovere (Duty): A general obligation not to harm another's rights.
- Obbligo (Obligation): A specific, personal duty to perform or not perform a certain action (e.g., pay taxes, comply with a permit condition).
- Soggezione (Subjection): The passive position corresponding to a "diritto potestativo." The subject must simply endure the unilateral modification of their legal sphere.
- Onere (Burden): An action that must be taken to achieve a desired outcome, but it's not strictly an obligation (e.g., filing an appeal within a certain timeframe to protect your interests).
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Fatto Giuridico (Legal Fact) / Atto Giuridico (Legal Act): These are the events or actions that create, modify, or extinguish a legal relationship.
- Fatto giuridico: An event that produces legal effects independently of human will (e.g., birth, death, natural disaster).
- Atto giuridico: An act performed by human will with the intention of producing specific legal effects (e.g., issuing a permit, signing a contract, an administrative appeal).
Dynamics of the Legal Relationship
The beauty of the legal relationship in public law is its dynamic nature. It's not static. A public administration might have the potere to issue a building permit, while a citizen has an interesse legittimo to ensure that power is exercised correctly. If the permit is denied unlawfully, the citizen might then exercise their diritto soggettivo to appeal the decision.
Here's a diagram showing the typical flow of establishing a legal relationship in public law:
graph TD
A["Event/Action"] --> B["Identificazione Soggetti"];
B --> C["Definizione Situazioni Giuridiche"];
C --> D["Nascita Rapporto Giuridico"];
D --> E["Esecuzione/Estinzione"];
subgraph Soggetti Coinvolti
S1["Soggetto Pubblico"] --> C;
S2["Soggetto Privato/Altro Ente"] --> C;
end
subgraph Situazioni Giuridiche Tipiche
C --> P["Potere/Diritto Soggettivo"];
C --> I["Interesse Legittimo/Obbligo/Soggezione"];
end
A -- "Potrebbe essere" --> F["Fatto Giuridico"];
A -- "Potrebbe essere" --> G["Atto Giuridico"];
G --> H["Atto Amministrativo"];
3. Worked Example
Let's consider a practical example: building a new house.
Imagine you own a plot of land and want to build your dream home. To do this, you need a permesso di costruire (building permit) from your local Comune (Municipality).
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Soggetti:
- Soggetto Attivo (Potere): The Comune, specifically its Ufficio Edilizia (Building Office), holds the potestà (power) to grant or deny building permits, acting in the public interest of urban planning and safety.
- Soggetto Passivo (Onere/Interesse Legittimo): You, the private citizen, are the subject who needs to request the permit and comply with its conditions.
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Situazioni Giuridiche Soggettive:
- The Comune has the potere amministrativo to evaluate your project based on zoning laws and building codes.
- You, as the applicant, have an onere to present a complete and correct application within specified timelines. More importantly, you have an interesse legittimo to ensure the Comune exercises its power lawfully. You don't have a "right" to get the permit unconditionally, but you have a "right" for the Comune to follow proper procedures, not discriminate, and apply the law correctly.
- If the permit is granted, you gain a diritto soggettivo to build according to the permit's terms, and an obbligo to follow those terms.
- If the permit is denied unlawfully (e.g., for reasons not based on law or due to procedural errors), your interesse legittimo is harmed.
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Atto Giuridico: Your application is an atto giuridico initiating the process. The Comune's decision (granting or denying the permit) is an atto amministrativo, a specific type of atto giuridico from a public entity.
If the Comune denies your permit based on incorrect interpretation of the law or insufficient reasons, your interesse legittimo allows you to appeal this decision to the Tribunale Amministrativo Regionale (TAR). This appeal represents the activation of your legal protection stemming from that initial legal relationship.
4. Key Takeaways
- The legal relationship connects subjects under the law, defining powers, duties, and interests.
- In public law, at least one subject is always a public entity (e.g., State, Municipality).
- Interesse legittimo is crucial in public law, protecting your interest in the lawful exercise of public power.
- Diritto soggettivo gives you a direct, protected claim, often against unlawful actions by public administration.
- Legal relationships are created, modified, or extinguished by fatti giuridici (events) or atti giuridici (actions).
- Understanding subjective legal situations helps you identify who can do what and what protections are available.
Common Mistakes to Avoid:
- Confusing Diritto Soggettivo with Interesse Legittimo: Don't assume you have a "right" to a specific administrative outcome; often, it's an "interesse legittimo" to lawful process.
- Ignoring the Public Element: Remember that in public law, the presence of a public entity is defining.
- Overlooking the "Onere": Forgetting that you might have to take a specific action (an onere) to protect your own interests.
- Treating Public Law like Private Law: Public law relationships are often structured differently due to the public interest and administrative powers involved.
5. Now Try It
Think of a situation where you or someone you know had an interaction with a public body (e.g., getting a driver's license, paying a fine, applying for public benefits).
Identify:
1. Who are the soggetti (subjects) in this interaction?
2. What situazioni giuridiche soggettive (subjective legal situations) do they hold (e.g., potere, diritto soggettivo, interesse legittimo, obbligo, onere)?
3. What atto giuridico (legal act) initiated or concluded this interaction?
Success looks like clearly outlining these three points for your chosen example, using the specific Italian terms where applicable, and explaining why you've categorized each element as you have.
Frequently asked about The Legal Relationship
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