Hicsonmez v Minister for Justice Home Affairs and Migration & Ors (Approved)

Factual and Procedural Background

The Appellant, a national of a foreign country, arrived in the State in 2019 and was employed by Company A. The Appellant applied for a certificate of naturalisation on 27 June 2024 under the Irish Nationality and Citizenship Act 1956 (as amended). The Minister for Justice, Home Affairs and Migration refused the application on 4 April 2025, citing failure to meet the statutory condition of one year's continuous residence immediately preceding the application, as required by section 15(1)(c) of the 1956 Act. The Minister determined that the Appellant was absent from the State for 177 days in the relevant year, exceeding the statutory maximum absence of 70 days plus an additional discretionary 30 days allowed under the newly inserted section 15C of the 1956 Act, which commenced on 31 July 2023.

The Appellant challenged the refusal by way of an ex parte application for leave to seek judicial review, contending that the Minister applied the continuous residence condition too rigidly, failed to exercise discretion, and unlawfully applied section 15C retrospectively. The Appellant also advanced constitutional challenges to section 15C.

Legal Issues Presented

1. Whether the Minister unlawfully applied section 15C of the Irish Nationality and Citizenship Act 1956 retrospectively to the one-year continuous residence period preceding the application.
2. Whether the Minister erred in law by applying an inflexible interpretation of the continuous residence requirement, failing to exercise discretion in light of the Appellant’s personal and employment-related absences.
3. Whether section 15C of the 1956 Act is unconstitutional, including alleged breaches of Articles 28, 40.1, and 40.3 of the Constitution.

Arguments of the Parties

Appellant's Arguments

• The Minister applied section 15C retrospectively by applying it to a continuous residence period that began before the commencement of the provision on 31 July 2023.
• The Minister applied an overly rigid and literal interpretation of "continuous residence," failing to consider the Appellant's ordinary residence in the State and necessary international travel related to employment and family circumstances.
• The Minister failed to exercise discretion to excuse absences, wrongly asserting no discretion exists beyond the statutory limits.
• Section 15C, by imposing rigid and inflexible criteria without allowing individual assessment, is unconstitutional for violating equality, proportionality, and fairness principles under the Constitution.
• The retrospective application of section 15C infringes the presumption against retrospective laws as articulated in Dublin City Council v. Fennell.

Respondents' Arguments

• The statutory amendment (section 15C) applies prospectively to applications made after 31 July 2023, including the Appellant’s June 2024 application, and does not apply retrospectively to past events or vested rights.
• The Appellant had no vested right to have the continuous residence requirement assessed under previous law as the application was made after commencement of section 15C.
• The Minister’s discretion to grant naturalisation is conditional upon satisfaction of statutory preconditions, including compliance with the absence limits prescribed by section 15C; no discretion exists to waive these conditions.
• The Minister’s decision was lawful and consistent with established case law, including Jones v Minister for Justice and Equality, which upheld the reasonableness of absence limits prior to statutory codification.
• The constitutional challenge lacks merit; section 15C is a neutral residence requirement with built-in flexibility for exceptional circumstances and does not create impermissible inequality.
• The appropriate forum for constitutional challenges is plenary proceedings rather than judicial review, especially where no arguable non-constitutional grounds remain.

Table of Precedents Cited

Court's Reasoning and Analysis

The Court commenced by applying the well-established threshold for leave to seek judicial review, requiring a prima facie legal argument with reasonable prospects of success. The Court considered whether the Appellant’s grounds met this threshold.

Regarding the retrospective application argument, the Court found that section 15C applies prospectively to applications made after its commencement on 31 July 2023. The Appellant’s application, made in June 2024, was rightly assessed under the new provision. The Court distinguished this from cases where retrospective application affects vested rights, noting no such rights had vested here. The transitional provision in section 15E further supported this prospective application. Consequently, the argument of unlawful retrospectivity was deemed misconceived and lacking in arguability.

On the issue of the Minister’s discretion, the Court held that the statutory language of section 15C imposes mandatory conditions on the Minister’s discretion to grant naturalisation. The Minister must be satisfied that the applicant meets the absence limits; no discretion exists to waive these conditions beyond the limited additional 30 days for exceptional circumstances. This statutory framework replaced the prior non-statutory policy, which did allow some discretion. The Court rejected the Appellant’s contention that the Minister erred in concluding no discretion remained.

Constitutional challenges to section 15C were also considered. The Court found no credible basis that the provision breaches constitutional equality or other rights. The statutory limits on absence are rational, non-discriminatory, and incorporate flexibility for exceptional circumstances. The Court noted that constitutional challenges are more appropriately pursued by plenary proceedings rather than via judicial review leave applications, especially where no arguable non-constitutional grounds remain. The Court emphasized that refusal of leave on constitutional grounds at this stage does not preclude full constitutional argument in appropriate proceedings.

Holding and Implications

The Court REFUSED LEAVE to proceed with judicial review.

The decision means that the Appellant’s challenge to the Minister’s refusal on grounds of retrospective application, lack of discretion, and unconstitutionality of section 15C does not meet the threshold of arguability required for leave. The Minister’s decision stands as lawful under the current statutory regime. The Court’s refusal does not establish a final ruling on constitutionality, leaving open the possibility for the Appellant to pursue constitutional challenges in plenary proceedings. No new precedent was set by this ruling beyond affirming the applicability and effect of section 15C and the procedural appropriateness of judicial review leave standards.