Cross-Examination in Judicial Review Requires a Genuine Factual Dispute, Not Bare Denial

High Court of Ireland · [2026] IEHC 731 · 4 November 2026 · Mr Justice Michael Conlon

1. Introduction

This judgment concerns the evidential threshold for obtaining permission to cross-examine an affidavit witness in judicial review proceedings. The applicants, a group of fishermen, sought to challenge a Maritime Usage Licence granted by the Maritime Area Regulatory Authority (“MARA”) to Codling Wind Park Limited for surveys on the Codling bank.

The immediate application was narrower than the underlying environmental challenge. The fishermen sought permission to cross-examine a MARA director about whether he had personally determined that Environmental Impact Assessment (“EIA”) screening was unnecessary. They maintained that the relevant conclusion had instead been reached by a senior marine adviser who lacked decision-making authority.

Conlon J refused permission. Applying established appellate authority, he held that the applicants had not identified a genuine factual conflict: they had denied the director’s account without providing an alternative factual account or an evidential basis answering his positive evidence.

The judgment therefore reinforces an existing procedural principle rather than establishing a new environmental assessment rule. A contested assertion does not become a genuine factual dispute merely because it appears in verified pleadings or an affidavit.

2. Background and Statutory Framework

The licence and the underlying challenge

MARA granted Maritime Usage Licence MUL230034 on 23 February 2026. The applicants sought to have that licence quashed. Their relevant ground alleged that MARA had acted outside its powers, or manifestly unreasonably, by failing to consider whether EIA screening was necessary.

More specifically, the applicants alleged that only the senior marine adviser had considered the issue and that she lacked properly delegated authority to make the determination on MARA’s behalf. Their pleaded complaint referred to delegation under section 58 of the Maritime Area Planning Act 2021.

The statutory assessment obligation

Section 117(5)(a), as reproduced in the judgment, requires MARA, as soon as practicable after receiving a licence application, to carry out EIA screening if it considers screening necessary after having regard to Schedules 5 and 7 to the Planning and Development Regulations 2001.

The dispute on this motion concerned the preliminary determination that screening was unnecessary. It did not require the court to decide whether the proposed surveys should, substantively, have undergone screening or EIA.

The decision-making record

By the hearing, the parties agreed that the director possessed the necessary delegated authority. The remaining factual question was whether he had exercised it. MARA relied on:

  • The director’s affidavit explaining that the senior marine adviser’s assessment report had been prepared for his consideration.
  • His evidence that, in granting the licence, he generally agreed with the report’s assessment and recommendations, including the recommendation that EIA screening or EIA was not required.
  • The signed licence, which recorded MARA’s consideration of the application, supporting material, and reports of its analysts and marine advisers.
  • Recital C, which expressly stated that MARA had considered Schedules 5 and 7 and decided that EIA screening was unnecessary.

The applicants’ motion asserted that no documentary evidence showed the director making or communicating the screening decision. The court nevertheless had to assess that contention against the licence’s express wording and the director’s sworn explanation.

3. Summary of the Judgment

The court refused the application to cross-examine for the following principal reasons:

  1. No genuine factual conflict had been established. The applicants’ denial did not identify alternative facts contradicting the director’s account.
  2. The expert report was not the operative administrative decision. The senior marine adviser could reach conclusions in an advisory report without thereby exercising MARA’s formal decision-making power.
  3. The director’s account was supported by the licence. Its wording recorded consideration of the advisers’ reports and a decision that EIA screening was unnecessary.
  4. The recitals formed part of the decision in substance. The applicants could not exclude recital C from consideration merely because it appeared outside the document’s operative provisions.
  5. The timing complaint fell outside this motion. Whether the decision had been made sufficiently promptly was not a matter requiring determination on the application to cross-examine.

The ruling did not determine the judicial review proceedings as a whole or finally establish the substantive environmental legality of the licence.

4. Precedents Cited

Ethical Farming Ireland v Minister for Agriculture [2026] IEHC 42

Both parties accepted that the relevant legal principles were set out in Farrell J’s ex tempore judgment in this case. That judgment, in turn, cited the appellate decisions discussed below.

Its function in the present ruling was to identify the agreed framework governing cross-examination in judicial review. The supplied judgment does not reproduce its factual background or develop any separate proposition from it. Its significance here is therefore its confirmation of the established approach, rather than a distinct factual analogy.

Hegarty v Commissioner of An Garda Siochana [2021] IECA 328

This was the decisive authority. Both parties relied on paragraphs 35 and 36 of Noonan J’s judgment, which distinguish a genuine evidential conflict from mere refusal to accept an opposing affidavit.

The quoted passages establish two important requirements:

  1. A genuine factual dispute must arise. An applicant cannot establish one simply by swearing that the respondent’s account is not accepted. Alternative facts must be put before the court.
  2. Resolving that dispute must generally be essential to deciding the legal issues. Even genuinely opposing accounts do not automatically justify oral questioning.

“Mere denial or non-acceptance of facts deposed to by a respondent cannot, without more, give rise to a right to cross-examine.”

The rationale is practical and procedural. If denial alone were sufficient, cross-examination could become routine in judicial review. Conversely, where a material factual conflict prevents resolution of the legal question, cross-examination may be not merely appropriate but essential.

Conlon J applied the first requirement directly. Because the applicants had supplied no factual foundation contradicting the director’s evidence, the threshold was not met. It was therefore unnecessary to resolve a genuine conflict through cross-examination.

RAS Medical Limited v Royal College of Surgeons in Ireland [2019] 1 IR 63

This decision appeared in the authorities cited through Ethical Farming Ireland v Minister for Agriculture. It formed part of the accepted line of authority governing the application.

However, Conlon J did not reproduce its reasoning or independently analyse its facts. The present judgment should therefore not be read as attributing a separate, newly articulated rule to it. The operative test was expressed through the quoted passages from Hegarty v Commissioner of An Garda Siochana.

5. Analysis of the Court’s Reasoning

A. Verified allegations did not answer positive evidence

The applicants had affidavits verifying their statement of grounds and a solicitor’s affidavit supporting the motion. Those documents asserted that the director had not made the relevant determination. The court nevertheless distinguished the existence of sworn allegations from the existence of a properly grounded factual conflict.

The director had positively explained his role, his consideration of the assessment report, and his agreement with its recommendations. No replying affidavit answered that evidence with an alternative factual account. Repeating the pleaded contention did not explain why his account was factually wrong.

The reasoning was therefore not simply that the applicants had omitted a procedural document. The substantive deficiency was that they had not provided facts capable of contradicting the director’s evidence. A further affidavit containing only the same denial would not address the defect identified by the court.

The court also found no evidential basis for treating the director as untruthful. That observation reflected the record before it; the judgment did not formulate a separate requirement that dishonesty must be proved before cross-examination can ever be permitted.

B. Expert advice and authorised decision-making were distinct

The applicants emphasised that the senior marine adviser’s report contained conclusions about the applicability of the EIA regime. They argued that she lacked authority to reach those conclusions.

Conlon J rejected the inference that an expert’s conclusion necessarily constituted the administrative determination under challenge. The adviser had prepared an expert report. Its conclusions could inform the authorised director’s decision without themselves becoming the operative exercise of statutory power.

This distinction was particularly important because the director’s authority was accepted. The issue was not whether the adviser possessed equivalent authority, but whether the director had made the decision while relying on her report. His evidence said that he had.

The judgment supports reliance on expert assessment within the decision-making process on these facts. It does not establish that expert advice can replace an authorised decision-maker’s statutory responsibility, or that every adoption of an adviser’s recommendation necessarily satisfies that responsibility.

C. The decision was read substantively, including its recitals

The applicants argued that recital C was not part of the decision itself or its operative provisions. The court held that the recitals, in substance, formed part of the decision or were incorporated into it.

Recital C was directly relevant: it recorded consideration of the prescribed schedules and a determination that screening was unnecessary. Read alongside the director’s signature and affidavit, it supported MARA’s account of the decision-making process.

The significance is contextual rather than absolute. The judgment does not hold that every recital in every administrative instrument is conclusive. It shows that a recital containing a substantive determination cannot necessarily be disregarded merely because of its position within the document.

D. The timing issue did not expand the motion

The applicants also relied on the statutory requirement for prompt decision-making. Conlon J held that any complaint about unacceptable delay was outside the cross-examination application before him.

That conclusion preserved the distinction between separate questions: whether an authorised decision was made, whether it was made in time, and whether it was legally correct. The court did not decide that the timing requirement had been satisfied.

6. Potential Impact

Evidence-based applications for cross-examination

The judgment reinforces the need to identify the precise conflicting facts and their evidential foundation. Applicants should explain what contradicts the respondent’s account and why resolving that contradiction is essential to the pleaded legal issue. A request to test an account merely because it is disputed will not satisfy the stated threshold.

Clear administrative records

For public authorities, the case illustrates the value of records that distinguish expert recommendations from authorised determinations. Here, the signed licence, its substantive recitals, and the director’s affidavit together supported MARA’s explanation.

This is not a general ruling that later affidavit evidence can cure a defective administrative decision. The court relied on sworn evidence that was supported by the decision document itself.

Limited environmental-law implications

The ruling does not establish that offshore surveys, borehole investigations, or maritime licences generally fall outside EIA requirements. Nor does it decide whether the report’s interpretation of Schedule 5 was legally correct. Its principal significance lies in judicial review procedure and proof of who made an administrative decision.

The licence also recorded separate appropriate assessment steps concerning European sites. Those recitals supplied background; their substantive adequacy was not determined on this motion.

7. Complex Concepts Simplified

Judicial review
A court process examining whether a public authority acted lawfully, rather than simply reconsidering the merits of its decision.
Affidavit and cross-examination
An affidavit is sworn written evidence. Cross-examination involves questioning its maker to test that evidence. Permission in judicial review requires the evidential justification described in the cited authorities.
Genuine factual conflict
A supported disagreement about what happened, not simply one party’s refusal to accept the other’s account.
Delegated authority
Legal power assigned to an official to act for a public body. Here, the director’s authority was accepted; whether he exercised it was disputed.
EIA screening and EIA
Screening determines whether a project requires a full environmental impact assessment. This motion concerned the antecedent determination under section 117(5)(a) that screening itself was unnecessary.
Appropriate assessment
A separate assessment process addressing effects on protected European sites. It should not be confused with EIA.
Recitals
Statements introducing or explaining an instrument’s background and basis. In this case, the relevant recitals formed part of, or were incorporated into, the substantive decision.
Ultra vires
Acting beyond legal powers. The applicants alleged that the relevant determination had not been made by an authorised decision-maker.

8. Conclusion

The High Court refused cross-examination because the applicants had not converted their disagreement with MARA’s account into a genuine evidential conflict. The authorised director’s affidavit, supported by the signed licence and its recitals, remained unanswered by an alternative factual account.

The central lesson is procedural: cross-examination in judicial review requires a properly grounded factual dispute whose resolution matters to the legal issues—not bare denial. The substantive environmental challenge remained distinct from this interlocutory ruling.