| O'Doherty v. Minister for Health & Others [2023] 2 I.R. 488; [2022] IESC 32 |
Clarifies the test for leave to seek judicial review and that the threshold is low but real; directs the court to assess arguability in light of any respondent evidence. |
The court applied this as the governing test for leave and emphasised the need to determine whether an arguable case exists by rational preliminary analysis, noting respondents had not adduced evidence but had advanced arguments. |
| G. v. Director of Public Prosecutions [1994] 1 I.R. 374 |
Authorises the relatively low threshold of arguability for leave to apply for judicial review. |
Referred to as the basic articulation of the leave threshold which the court must apply. |
| O.O. (a minor) v. The Minister for Justice and Equality [2015] IESC 26 |
Observation that a point of law is only "arguable" if, by rational preliminary analysis, it could have a prospect of success. |
Cited to reinforce the standard of arguability the court applied to the Applicant's grounds. |
| D.C. v. Director of Public Prosecutions [2005] IESC 77; [2005] 4 I.R. 281 |
Confirms that the procedure allowing leave applications on notice does not alter the threshold test for arguability. |
Adopted to explain that respondent argument/evidence must be considered but the threshold remains the same. |
| Mohan v. Ireland [2019] IESC 18; [2021] 1 I.R. 293 |
Requires a challenger to show at a minimum that they were adversely affected or reasonably anticipated such adverse impact. |
The court held the Applicant had not demonstrated she was adversely affected (no evidence of proposer/seconder or council support) and so failed this minimum requirement. |
| Cahill v. Sutton [1980] IR 269 |
Expresses the jus tertii principle: an applicant cannot assert third parties' constitutional rights. |
Applied to reject the Applicant's reliance on the position and rights of other would‑be candidates rather than showing personal adverse effect. |
| People (DPP) v. O'Shea [1982] IR 384 |
Principle that the Constitution must be interpreted according to plain words when meaning is unambiguous. |
Invoked in the court's interpretative approach to Article 12 and to reject an unexpressed constitutional restriction on party discipline. |
| David Kavanagh v. The Coalition Government of Ireland and Another [2023] IESC DET 61 |
Political agreements and reasons for political votes are of political significance only and do not give rise to legal claims; political decision-making is non-justiciable. |
The court relied on this principle to determine that decisions by party leaders or members as to nominations are political choices not amenable to judicial review. |
| Beades v. Ireland [2019] 2 IR 582 (Court of Appeal) |
Confirms that nomination decisions by the Government are political choices and not justiciable where constitutional and statutory requirements are met. |
Used to support the conclusion that political decision-making concerning nominations fell outside justiciable legal review. |
| Doherty v. Government of Ireland [2011] 2 IR 222 |
The courts do not act as a "watchdog" over matters properly within the political arena. |
Adopted to reinforce that the court will not intrude into political domain of party decisions on nominations. |
| Lennon v. Minister for the Environment (1990) (report) |
Historical example where an application to restrain a presidential election on similar grounds was rejected. |
Cited to show precedent for rejecting similar arguments that elected politicians unfairly limit the people's choice in presidential nominations. |
| Byrne v. The Tánaiste & Ors (judgment of Cregan J, 2025) |
Held that an instruction by a party leader to councillors to discourage independent nominations was a purely political action and not justiciable. |
The court adopted Cregan J's analysis and conclusion as directly relevant and persuasive, finding the Applicant's claim similar and non-justiciable. |
| Garda Representative Association v. Minister for Public Expenditure and Reform [2018] IESC 4 |
Principle that primary legislation does not, by itself, give an entitlement to be heard in the process of legislature-making; the democratic process provides avenues for influence. |
The court applied the analogy: Article 12 grants nomination powers to councils and Oireachtas; interested parties have political avenues to influence the process, not a judicially enforceable right to specific hearing procedures. |
| Merck Sharp & Dohme Corporation v. Clonmel Healthcare Limited [2020] 2 I.R. 1 |
Test for interim injunctions requires a "serious issue" or arguable case to be established at the leave stage. |
Cited to explain that, having refused leave for lack of any arguable case, there could be no injunction pending a nonexistent judicial review hearing. |
| Fitzgibbon v. Ireland [2001] IESC 207; Slattery v. An Taoiseach [1993] 1 IR 286; Finn v. Attorney General [1983] IR 154 |
Authorities establishing the limited role of courts in restraining or interfering with legislative and referendum processes; courts lack jurisdiction to halt democratic procedures where Constitution provides for them. |
The court relied on these authorities to emphasise the limited jurisdiction to restrain elections or constitutional processes and to reject the Applicant's remedies that would derail the constitutional timetable. |
| McD v. L [2010] 2 IR 199 |
Confirms that the European Convention on Human Rights operates in Ireland subject to the 2003 Act and the Constitution. |
Invoked to note that ECHR claims are subject to domestic constitutional constraints and that the Applicant did not establish an arguable ECHR claim against the named respondents. |
| Redmond v. Minister for the Environment [2001] 4 IR 61; King v. Minister for the Environment (No. 2) [2007] IR 296 |
Cases concerned Dáil elections and are not directly relevant to Article 12 presidential nomination provisions. |
The court observed these authorities do not assist the Applicant's challenge to Article 12 nomination procedures. |
| Kovach v. Ukraine (2008); Tahirov v. Azerbaijan (2014/2015); Bowman v. UK (1998); Zdanoka v. Latvia (2006) |
Strasbourg jurisprudence on electoral fairness and candidates' ability to stand (examples cited by the Applicant). |
The court considered these ECHR authorities but concluded they were factually and legally inapposite to the circumstances and domestic constitutional framework of the Applicant's case. |