1The Confederation shall protect the constitutional order of the Cantons.
2It shall intervene when public order in a Canton is disrupted or under threat and the Canton in question is not able to maintain order alone or with the aid of other Cantons.
Art. 52 BV
#Overview
Article 52 of the Federal Constitution governs the federal guarantee for cantonal order. This provision obliges the Confederation to protect the «constitutional order» of the cantons and empowers it to intervene if a canton can no longer maintain its order on its own.
What is the constitutional order? According to the prevailing doctrine (Belser/Massüger, BSK BV, Art. 52 N. 7), it encompasses the entire cantonal constitutional law that has been guaranteed by the Federal Assembly. This goes far beyond mere public order. A minority opinion (Schweizer/Müller) emphasises instead primarily cantonal constitutional autonomy.
Who is affected? All 26 cantons are subject to this federal guarantee. They can turn to the Confederation in case of serious disruptions to order or must tolerate its intervention.
When can the Confederation intervene? A federal intervention according to paragraph 2 is only possible if three conditions are met: order must be disrupted or threatened, the canton cannot help itself, and other cantons also cannot provide sufficient help (principle of subsidiarity).
What are the consequences of this provision? In practice, Article 52 BV today functions primarily preventively. Actual federal interventions have not occurred since 1890 (Federal Council Message on the Federal Constitution, BBl 1997 I 321). Instead, federal supervision takes place through ordinary legal remedies, as the Federal Supreme Court shows (BGE 133 I 206): Unconstitutional cantonal enactments are directly repealed by the Federal Supreme Court.
Concrete example: If a canton could no longer determine its state organs - for instance due to persistent political deadlocks or violence - the Federal Council could decide on an intervention after warning and unsuccessful assistance by neighbouring cantons. It could dispatch federal commissioners or, in extreme cases, employ military means.
The provision embodies the tension between cantonal autonomy and overall state stability in the federal state.
Art. 52 FC — Protection of the Constitutional Order
#Doctrine
#1. Legislative History
N. 1 Art. 52 FC derives from Art. 16 of the Federal Constitution of 1874 (oFC), which in turn continued the federal guarantee of cantonal constitutions introduced by the Federal Constitution of 1848. The provision thus belongs to the oldest elements of Swiss federal constitutional law. In its Dispatch of 20 November 1996 (BBl 1997 I 1, p. 597), the Federal Council described it as a substantive continuation of the existing legal position: the aim was to oblige the Confederation to protect the constitutional order of the cantons and to regulate the possibilities for intervention. The Dispatch emphasised in particular the federal guarantee of the cantonal constitutional order, the subsidiary power of intervention of the Confederation, and — in the draft version — a rule on the allocation of costs in the event of federal intervention.
N. 2 The Federal Council's original draft provided for a three-paragraph structure: paragraph 1 containing the duty to protect, paragraph 2 containing the conditions for intervention, and paragraph 3 containing the rule on cost-bearing in the event of federal intervention. During the parliamentary proceedings, the Council of States on 21 January 1998 and the National Council on 19 March 1998 each adopted versions deviating from the draft. After several conciliation rounds in the Conference of Conciliation, both Chambers approved the text in the final vote on 18 December 1998. The cost rule was removed during parliamentary deliberations and no longer appears in the current text; the question of costs in the event of intervention is therefore not explicitly regulated at the constitutional level today. The new FC entered into force on 1 January 2000.
N. 3 The historical predecessor, Art. 16 oFC, distinguished between the guarantee of cantonal constitutions and the right of intervention. The Federal Tribunal, in BGE 5 I 457 of 17 October 1879 (Stabio incident, Canton of Ticino), established for the first time the principles governing federal intervention in the event of political unrest in a canton. It held that the dispatch of a federal commissioner and the placing of a regiment on standby did not yet constitute an «armed federal intervention» within the meaning of the competence provisions then in force, as long as the troops had not actually marched into the canton. This decision illustrates the Confederation's restraint in intervening in cantonal affairs.
#2. Systematic Classification
N. 4 Art. 52 FC is located in Chapter 3 («Confederation and Cantons») of Title 2 of the Federal Constitution (Art. 42–53 FC) and thus forms part of the core of federal ordering law. The provision is a guarantee norm for the protection of the federal structure and not a fundamental rights norm; it does not create subjective rights of individuals. It is closely related to the constitutional guarantee under Art. 51 FC (cantonal constitutions must be guaranteed by the Confederation) and stands in systematic connection with the general federal supervision (→ Art. 49 FC: supremacy and observance of federal law) as well as the principle of federal loyalty (→ Art. 44 FC). Whereas Art. 51 FC governs the formal guarantee of cantonal constitutions, Art. 52 FC secures the substantive guarantee of the actually lived constitutional order against disturbances and threats.
N. 5 Art. 52 FC is an organisational norm within the meaning of FC dogmatics: it obliges the Confederation to take a certain action and lays down the conditions therefor, without conferring an enforceable subjective right on citizens. As such, it stands alongside Art. 173 para. 1 let. b FC, which authorises the Federal Assembly to take measures to safeguard internal security, and Art. 185 paras. 1–2 FC, which confers on the Federal Council the competence to take measures to safeguard external and internal security. These provisions together constitute the constitutional toolkit for the protection of the state order (→ Art. 173 para. 1 let. b FC; → Art. 185 FC). The relationship to Art. 185 FC is functional: Art. 52 FC is the intervention norm in favour of the cantons, while Art. 185 FC protects the order of the Confederation and is directed against external threats.
#3. Elements of the Provision / Normative Content
N. 6 Paragraph 1: Duty of protection of the Confederation. The Confederation «protects the constitutional order of the cantons». The concept of «constitutional order» covers the legal order of a canton as constituted by the cantonal constitution: the existence of republican institutions (legislature, executive, judiciary), their capacity to function, and the fundamental principles enshrined in the cantonal constitution. What is protected is not every public-order state of affairs, but the constitutional order in the sense of a democratic and rule-of-law minimum guarantee (Biaggini, BV Kommentar, 2nd ed. 2017, Art. 52 N. 2; Häfelin/Haller/Keller/Thurnherr, Schweizerisches Bundesstaatsrecht, 10th ed. 2020, N 1189). The requirements for cantonal constitutions under Art. 51 FC — democratic and republican form of government as well as compliance with federal law — form the reference framework for what Art. 52 FC protects (→ Art. 51 FC). Specific statutory security instruments for internal security — such as the Federal Act on Measures to Safeguard Internal Security (MASA, SR 120) or the concordats of the police directors — are to be distinguished therefrom; Art. 52 FC governs the constitutional guarantee level, not the police-law enforcement level.
N. 7 Paragraph 2: Subsidiary power of intervention. The Confederation intervenes when two cumulative conditions are met: (a) the order in a canton is disturbed or threatened, and (b) the canton concerned cannot protect it by itself or with the assistance of other cantons. «Disturbed» refers to a serious impairment of the constitutional order that has already occurred; «threatened» refers to one that is imminent. The formula «cannot protect it by itself or with the assistance of other cantons» gives concrete expression to the principle of subsidiarity: the Confederation may only intervene when the cantonal means — including recourse to administrative and judicial assistance from other cantons — have been exhausted or are manifestly insufficient (Rhinow/Schefer/Uebersax, Schweizerisches Verfassungsrecht, 3rd ed. 2016, N 2219; Tschannen, Staatsrecht der Schweizerischen Eidgenossenschaft, 4th ed. 2016, § 18 N 34).
N. 8 Competence and means of intervention. Art. 52 FC says nothing about the competent federal authority or the modalities of intervention. These questions are governed by Art. 173 para. 1 let. b FC (Federal Assembly) and Art. 185 paras. 1–2 FC (Federal Council). Historically, the Federal Assembly authorised the intervention (under Art. 85 no. 7 oFC), while the Federal Council was responsible for its execution. In urgent situations, the Federal Council may act on the basis of Art. 185 para. 3 FC without prior authorisation by the Federal Assembly if necessary. Possible means of intervention include in particular the dispatch of a federal commissioner, the deployment of federal forces, or the use of the federal army (→ Art. 58 FC). The specific arrangements are left to the ordinary legislator and the Federal Council (Biaggini, BV Kommentar, 2nd ed. 2017, Art. 52 N. 5).
N. 9 Demarcation from ordinary federal supervision. Art. 52 FC governs extraordinary intervention for the protection of the constitutional order and must be strictly distinguished from the general federal supervision over the cantons (Art. 49 FC). Violations of federal law by cantonal enactments are today addressed primarily through ordinary legal remedies — in particular the public law appeal to the Federal Tribunal — without requiring a formal federal intervention under Art. 52 FC. Constitutional judicial review of cantonal enactments is thus the standard procedure; Art. 52 FC remains confined to rare, politically exceptional situations.
#4. Legal Consequences
N. 10 If the conditions of Art. 52 para. 2 FC are met, a duty to act arises for the Confederation («It shall intervene»). The Confederation has no discretion as to whether it intervenes; it does, however, retain discretion as to how and with which means it does so (Tschannen, Staatsrecht der Schweizerischen Eidgenossenschaft, 4th ed. 2016, § 18 N 35). The intervening federal authorities act on behalf of the Confederation and temporarily assume the protective function in favour of the canton concerned. The Confederation's jurisdiction ends once the constitutional order has been restored.
N. 11 The cost consequences of a federal intervention are not regulated in Art. 52 FC — unlike what was originally envisaged in the Federal Council's draft Dispatch. Since the cost rule was removed during parliamentary proceedings, the question of cost-bearing is governed by the general principle that the Confederation bears the costs of its own measures, in the absence of any special statutory provision. Biaggini (BV Kommentar, 2nd ed. 2017, Art. 52 N. 6) notes that the absence of a constitutional basis for passing costs on to the canton would require an explicit statutory foundation.
N. 12 Art. 52 FC creates no subjective rights of individuals or of cantons to any particular form of intervention. A canton cannot derive from Art. 52 FC a claim to federal action against another canton. The provision is directed exclusively at the federal authorities as an institutional duty (Rhinow/Schefer/Uebersax, Schweizerisches Verfassungsrecht, 3rd ed. 2016, N 2220).
#5. Disputed Questions
N. 13 The concept of «constitutional order». It is disputed how far the concept of «constitutional order» protected by Art. 52 FC extends. A narrow interpretation (see Häfelin/Haller/Keller/Thurnherr, Schweizerisches Bundesstaatsrecht, 10th ed. 2020, N 1189) limits the protection to the fundamental structures of state authority constituted by the cantonal constitution and denies protection to statutory-level orders. A broad interpretation (indicated in Rhinow/Schefer/Uebersax, Schweizerisches Verfassungsrecht, 3rd ed. 2016, N 2215 f.) also encompasses statutory institutions based on constitutional law, insofar as their existence is indispensable for the functioning of the canton. In practice, this question has so far remained irrelevant, since Art. 52 para. 2 FC has never had to be activated since 1848.
N. 14 Duty to act or discretionary power? Biaggini (BV Kommentar, 2nd ed. 2017, Art. 52 N. 4) emphasises that the wording («It shall intervene») leaves the Confederation no discretion as to the whether of the intervention once the conditions of the provision are met. In contrast, Tschannen (Staatsrecht der Schweizerischen Eidgenossenschaft, 4th ed. 2016, § 18 N 35) highlights that the assessment of whether the conditions are fulfilled — in particular the assessment of whether the canton is unable to manage the situation «by itself or with the assistance of other cantons» — necessarily involves a political value judgment that leaves the competent federal authorities a factual margin of appreciation. This dispute is primarily theoretical in nature, since Art. 52 FC has in practice never been applied since 1848.
N. 15 Relationship to Art. 185 FC and the problem of dual competence. It remains open how Art. 52 FC is to be demarcated from Art. 185 paras. 1–2 FC when the Federal Council intervenes in a canton in order to safeguard internal security. Rhinow/Schefer/Uebersax (Schweizerisches Verfassungsrecht, 3rd ed. 2016, N 2221) take the view that Art. 185 FC constitutes an independent basis, independent of Art. 52 FC, and that the Federal Council may act on that basis even without the strict conditions of Art. 52 para. 2 FC being met. Biaggini (BV Kommentar, 2nd ed. 2017, Art. 52 N. 3), however, urges restraint: Art. 185 FC must not be used to circumvent the subsidiarity requirements of Art. 52 para. 2 FC.
N. 16 Relationship to Art. 51 FC (constitutional guarantee). Academic commentary disputes whether Art. 52 FC goes beyond Art. 51 FC or merely represents its enforcement dimension. Häfelin/Haller/Keller/Thurnherr (Schweizerisches Bundesstaatsrecht, 10th ed. 2020, N 1191) classify Art. 52 FC as an independent substantive guarantee of existence going beyond the formal constitutional guarantee. Biaggini (BV Kommentar, 2nd ed. 2017, Art. 52 N. 1) confirms this assessment: whereas Art. 51 FC guarantees the normative conformity of the cantonal constitution with federal law, Art. 52 FC is directed against actual threats and disturbances to the living order.
#6. Practical Notes
N. 17 Art. 52 FC is one of the most rarely applied provisions of the Federal Constitution. Since the founding of the federal state in 1848, formal federal intervention under the predecessor provision (Art. 16 oFC) has been seriously considered only in a few, historically remote cases — notably the Geneva unrest of 1864 and the events in Ticino in 1890. The Stabio incident of 1876/79 (BGE 5 I 457) shows that even the deployment of federal structures outside the canton concerned does not yet constitute an «intervention» in the legal sense.
N. 18 The currently decisive function of Art. 52 FC lies in its preventive effect: the existence of the provision strengthens the institutional order of the cantons by signalling to both state and private actors that a violent overthrow of the cantonal constitutional order would not be tolerated at the federal level. Legal practitioners dealing with questions of internal security should note that the practical safeguarding of cantonal orders today is effected primarily through federal supervision (→ Art. 49 FC), constitutional jurisdiction (→ Art. 189 FC), and the ordinary right of appeal.
N. 19 The Federal Tribunal reviews cantonal enactments for their conformity with the Federal Constitution and annuls them if necessary, without this requiring a formal intervention under Art. 52 FC (BGE 133 I 206 E. 5, concerning the degressive Obwalden tax tariffs: violation of Art. 8 para. 1 and Art. 127 para. 2 FC). This decision illustrates that constitutional review of cantonal legislation today is carried out by the courts and not by political federal intervention — which is consistent with the principles of the rule of law and separation of powers. Art. 52 FC thus remains de facto confined to those exceptional cases in which the institutions of a canton are so severely impaired by political or physical force that the ordinary system of legal protection fails.
N. 20 For legislative practice, the following applies: insofar as the Confederation wishes to take measures to safeguard internal security — for example by deploying the army or federal police to protect cantonal institutions — it requires a statutory basis (→ Art. 5 para. 1 FC). The MASA (SR 120) and the Military Act (MilA, SR 510.10) provide the relevant statutory instruments for this purpose, without every specific measure having to fulfil the strict conditions for intervention under Art. 52 para. 2 FC.
#Case Law
#General Principles of Federal Guarantee
BGE 133 I 206 of 1 June 2007
Federal supervision of unconstitutional cantonal legislation
The Federal Supreme Court examines cantonal legislation for its constitutionality and quashes it if necessary, without requiring formal federal intervention under Art. 52 FC.
«The cantons are in principle free to structure their tax system. However, they are obliged to observe superior federal law [...] Within the scope of discretion available to them, the cantons are not completely free. They must also observe constitutional fundamental rights, in particular the principle of equal treatment under the law (Art. 8 para. 1 FC) and the tax law principles derived therefrom [...].»
#Historical Cases of Application
BGE 5 I 457 of 17 October 1879
Political unrest in Ticino (Stabio incident)
Early case examining federal intervention in the event of political disturbances in a canton.
The limited case law on Art. 52 FC is explained by the fact that open disruptions of the constitutional order in the cantons have practically ceased to occur since the founding of the federal state. The preventive effect of the provision and the established federal order have meant that Art. 52 FC as the ultima ratio of the federal guarantee has not had to be activated in practice.
The case law shows that federal supervision today occurs primarily through ordinary legal remedies (appeal to the Federal Supreme Court) and not through the extraordinary federal intervention under Art. 52 FC. This development corresponds to the rule of law principle, according to which constitutional violations should be remedied through judicial control and not through political intervention.