| Martinez Fernandez v. Hungary (Application No. 30814/22) |
ECtHR principle that representation in detention-review proceedings must be effective: meaningful contact, ability to put and test arguments; representative must explore the person's wishes and seek instructions. |
Used to assess the adequacy of the guardian ad litem's role. The court applied it to require effective representation and found the guardian ad litem in this case had engaged actively and obtained independent reports. |
| HSE v ND [2025] IEHC 86 |
High Court's articulation of the guardian ad litem's role: conveying will and preferences and, where appropriate, offering an objective view to the court. |
Relied upon to support the conclusion that the guardian ad litem's conduct in these proceedings was appropriate and that a guardian may, depending on circumstances, offer independent views to the court. |
| G. McG v. DW (No. 2) [2000] 4 IR 1 |
Caution that where jurisdiction is expressly delineated by statute, courts should not invoke a broader inherent power to go beyond statutory delineation except where constitutional principles require otherwise. |
Used to frame the interaction between statute and inherent jurisdiction and to emphasise care in invoking implied powers when statutes are comprehensive. |
| Mavior v. Zerko Ltd. [2013] 3 IR 268 |
Reinforces the principle that courts should not invoke an inherent jurisdiction to go beyond statutory schemes where statute delineates the jurisdiction. |
Applied alongside G. McG to explain limits on the use of inherent powers and the need to respect the legislature's role. |
| Kirwan v Connors [2025] IESC 21 |
Distinction between 'subject matter' inherent jurisdiction (constitutional, High Court) and inherent procedural powers (adjunct to court administration) — and their differing susceptibility to statutory regulation. |
The judgment adopted this distinction to clarify that references to 'inherent jurisdiction' in the present case relate to the High Court's subject-matter constitutional jurisdiction to protect vulnerable adults' rights. |
| Zaoui v. Attorney General [2005] 1 NZLR 666 |
Authoritative comment that, if a legislature intended to abrogate a court's constitutional jurisdiction, it would do so clearly and comprehensively. |
Cited to support the proposition that any statutory abrogation of inherent subject-matter jurisdiction would need to be clear; used in statutory interpretation of s.4(5) of the 2015 Act. |
| In re FD [2015] 1 IR 741 |
Illustrates limits on what may be characterised as inherent jurisdiction/power (e.g. power to create trusts outside statutory wardship was not inherent). |
Distinguished: used to underscore the difference between inherent powers and inherent subject-matter jurisdiction and to show that some inherent powers may be displaced by statute. |
| HSE v AM [2019] 2 IR 115 |
Supreme Court recognition that the inherent jurisdiction remains available in exceptional cases to vindicate constitutional rights where statute does not provide. |
Relied on to confirm that inherent jurisdiction survives as a 'backstop' for fundamental rights, but should be used sparingly and in ways that respect statutory regimes. |
| DG v Eastern Health Board [1997] 3 IR 511 |
Early authority recognising courts' power to vindicate personal rights and, where necessary, to detain to protect welfare (in that instance, a child). |
Used as foundational authority to explain the constitutional basis for the court's jurisdiction to protect vulnerable persons' welfare and to detain in exceptional circumstances. |
| SS v H.S.E. [2008] 1 IR 594 |
Use of court powers to protect children's welfare (illustrative of inherent jurisdiction in child-care context). |
Referenced as part of the lineage of cases applying the inherent jurisdiction to protect vulnerable persons. |
| HSE v JO'B [2011] 1 IR 794 |
Application of inherent jurisdiction in respect of an adult with learning disability/autism spectrum features requiring secure care — statutory mechanisms inadequate. |
Used as an example of the court protecting adults where statutory schemes could not meet identified needs. |
| HSE v VE (Unreported, High Court, 26 July 2012) |
Illustrative precedent where an adult required specialist care and statutory mechanisms were inadequate to secure it. |
Referenced to show the consistent features of cases in which the inherent jurisdiction has been used. |
| HSE v VF [2014] 3 IR 305 |
Case where the court confronted whether statutory mental health provisions could be used; illustrates circumstances where wardship/inherent jurisdiction may be engaged. |
Used to illustrate that where statutory criteria are not met, inherent jurisdiction may be the only available remedy. |
| In re K.K. (No. 2) [2023] 2 ILRM 189; KK (No. 1) [2023] IEHC 306; KK (No. 3) [2023] IEHC 565; Child & Family Agency v KK & HSE [2024] IECA 242 |
Post-2015 Act authorities exploring the relationship between the 2015 Act and the court's power to make detention-type orders under inherent jurisdiction; emphasis on functional, decision-specific capacity and the need for safeguards. |
Cited extensively. The court accepted that the 2015 Act reshaped the landscape (capacity is decision-specific) but that s.4(5) confirms the continued availability of inherent jurisdiction; the KK line was used to derive practical safeguards and to stress that the inherent jurisdiction is a backstop and must be informed by the 2015 Act's principles. |
| A.C. v Cork University Hospital [2019] IESC 73 / [2020] 2 IR 38 |
Supreme Court synthesis of ECtHR authorities on deprivation of liberty: the "concrete situation" test (type, duration, effects and manner of implementation) and the need to assess objective and subjective elements. |
Applied to assess whether the orders sought amounted to a deprivation of liberty and to explain that even "light-touch" regimes can fall on the detention/deprivation-of-liberty spectrum. |
| Surrey County Council v P. [2014] AC 896 |
UK Supreme Court analysis of domestic homelike placements and whether those arrangements amount to deprivation of liberty. |
Referenced for principles that a homelike placement may still amount to deprivation of liberty depending on supervision and control; used to inform the court's evaluation in this case. |
| Fitzpatrick v FK [2009] 2 IR 7 |
Recognition of the common-law, functional and decision-specific test of capacity. |
Used to support the decision-specific approach to assessing capacity (consistent with the 2015 Act). |
| Governor of X Prison v P. McD [2016] 1 ILRM 116 |
Example of a different category of inherent-jurisdiction detention application (not based on lack of capacity issues discussed in KK). |
Distinguished as not directly analogous: Hyland J.'s guidance in KK applied to cases involving lack of capacity. |