Time Limits for Medical Negligence Claims in Ireland

This is general information about Irish law, not legal advice. Every case depends on its specific facts. Consult a solicitor for advice on your situation.

In Ireland, the time limit for a medical negligence claim is two years less one day from your "date of knowledge", not from the date of treatment. This is set out in Section 2 of the Statute of Limitations (Amendment) Act 1991 [1]. Miss this deadline by even one day and your right to claim compensation is lost permanently. The date of knowledge is the date you first knew, or ought reasonably to have known, that negligent medical care caused you injury.

Standard deadline: Two years less one day from date of knowledge. 1991 Act, s.2 ^[1]

Children: Clock paused until 18th birthday. Claim must be issued before 20th birthday.

IRB exemption: Medical negligence claims bypass the Injuries Resolution Board entirely. Citizens Information (2025) [3]

Proposed 3-year limit: Enacted in LSRA 2015 but never commenced. The current law remains 2 years. LSRA 2015, s.221 ^[2]

Contents

The two-year rule and how it works

The statute of limitations for medical negligence in Ireland is the legal deadline by which a patient must issue court proceedings or permanently lose the right to claim compensation for injuries caused by negligent medical care. Under Irish law, this deadline is two years less one day from the date of knowledge.

You must issue court proceedings within two years less one day from the date you first knew your injury was caused by negligent medical care. This deadline is absolute. Under Section 2 of the Statute of Limitations (Amendment) Act 1991 ^[1], the two-year period runs from the later of two dates: the date the negligent act happened, or the date you acquired "knowledge" that it happened. In medical negligence, these dates are often years apart.

Consider a patient who undergoes surgery in 2022. The surgical team leaves a drain in place too long, causing infection. The patient recovers and thinks nothing more of it until a second opinion in January 2025 reveals the infection was avoidable. The two-year clock starts in January 2025, not 2022. The deadline falls in January 2027.

Three dates that matter (and that most guides conflate)

Medical negligence time limits involve three distinct dates that serve different functions. Confusing them is one of the most common sources of error:

1. Date of treatment is when the medical act or omission happened. This is the date the surgery was performed, the scan was read, or the prescription was written.
2. Date of knowledge is when you first knew, or should have known, that the treatment was negligent and caused you harm. This is the date that starts the two-year clock.
3. Date of issue is when your solicitor files a Personal Injuries Summons with the High Court. This is the date that stops the clock.

The date of treatment and the date of knowledge are the same only when the negligence and its consequences are immediately obvious, such as wrong-site surgery. In delayed diagnosis cases, the gap between treatment and knowledge can be years.

One aspect the official guidance doesn't cover: the defendant will almost always challenge your date of knowledge. Their legal team will argue you knew, or should have known, earlier than you claim. This is why documenting the exact moment you first suspected negligence matters. GP appointment notes, hospital letters, second-opinion referral dates, and even text messages to family members can all become evidence.

What is the "date of knowledge"?

The date of knowledge is the date you first knew, or ought reasonably to have known, four specific things. Under the 1991 Act ^[1], all four core elements must be present before the clock starts:

1. You suffered an injury. You became aware that something was wrong with your health.
2. The injury was significant. It wasn't trivial or temporary.
3. The injury was caused by someone's act or omission. You connected the harm to a specific medical intervention or failure.
4. You identified who was responsible. You knew which hospital, doctor, or health service provider was involved.

The statute also includes a fifth element, s.2(1)(e), which applies where the person who committed the act is different from the defendant (for example, in vicarious liability claims). In most medical negligence cases, the treating doctor or hospital is the defendant, so this additional element rarely changes the analysis.

The test also includes what you "ought reasonably to have known." This creates an affirmative duty: courts will ask whether you took reasonable steps to investigate when warning signs appeared. A patient who notices worsening symptoms after surgery but doesn't return to a doctor for three years may find the court assigns an earlier date of knowledge based on when a reasonable person would have sought answers. Ignoring an abnormal test result, skipping follow-up appointments, or dismissing persistent pain as "normal recovery" can all bring your date of knowledge forward, even though you didn't consciously suspect negligence at the time.

For a detailed breakdown of how Irish courts apply this test, including worked examples for delayed diagnosis and surgical errors, see our guide to the date of knowledge in medical negligence.

When does the clock typically start? Common triggers by claim type

Typical date-of-knowledge triggers for common medical negligence claim types in Ireland. The actual date depends on your specific facts.

Claim type	Typical trigger moment	Why the delay happens
Missed cancer diagnosis	Second opinion reveals the tumour at a later stage than it should have been caught	Original scan or test was misread; patient trusted initial "all clear"
Delayed diagnosis	New consultant identifies that earlier symptoms were wrongly attributed to a different condition	GP or hospital treated for the wrong condition for months or years
Surgical error	Post-operative complications fail to resolve, and a second surgeon identifies the original error	Patient was told complications were "normal" after the procedure
Birth injury	Developmental delays become clinically apparent in the child (for child's claim, clock paused until 18)	Injury at birth may not manifest until motor or cognitive milestones are missed
Hospital infection	Expert report links the infection to a specific breach of infection control	Patient knew they had an infection but not that it was caused by hospital negligence (O'Sullivan v Ireland [2019])
Medication error	Adverse reaction is traced to wrong drug or wrong dosage by a different prescriber	Side effects were initially attributed to the underlying condition, not the medication

Monaghan v Molony [2024]: why waiting for an expert report won't save you

An expert report confirming negligence does not reset or extend the two-year clock. In Monaghan v Molony [2024] IEHC 287, the High Court dismissed a claim where the plaintiff argued his date of knowledge should run from the date he received an expert medical report. The court held that the plaintiff already possessed the foundational facts needed to investigate a potential claim through earlier medical consultations. Passively waiting for formal confirmation of negligence did not pause the statutory period.

This ruling directly contradicts a dangerous assumption many people make: that the two years only starts running once an expert confirms negligence in writing. From handling cases involving similar timing disputes, we've seen clients lose their right to claim because they waited for an expert report that arrived after the two-year window had already closed. The timing matters more than most guides suggest: once you suspect something went wrong, the clock may already be ticking.

The Supreme Court reached a different conclusion in O'Sullivan v Ireland [2019] IESC 33, where a patient contracted MRSA during surgery in 2005. In that case, the court accepted that the plaintiff didn't have the required knowledge until an expert report in 2007 confirmed the infection was connected to hospital negligence. The distinction: O'Sullivan genuinely lacked the foundational facts connecting infection to negligence, while Monaghan already had enough information to investigate.

Practical tip we give every client: request your full medical records under the Data Protection Act 2018 [4] within the first seven days of suspecting negligence. This preserves evidence and starts the investigation without waiting for a formal expert opinion.

Who gets more time? Children, disability, and fatal claims

Time limit exceptions for medical negligence claims in Ireland, by claimant category

Claimant category	Time limit rule	Legal authority
Adult (full mental capacity)	Two years less one day from date of knowledge	1991 Act, s.2 [1]
Child (under 18)	Clock paused until 18th birthday. Deadline: day before 20th birthday	1991 Act, s.5
Person lacking mental capacity	Clock suspended until capacity is regained	1991 Act, s.5
Fatal injury (dependants)	Two years from death, or from dependant's date of knowledge (whichever is later)	Civil Liability Act 1961, Part IV [5]

Claims for children

A child can't bring a legal claim independently. The two-year limitation period doesn't begin until the child turns 18. In practice, this means a claim for a birth injury can be brought up until the day before the child's 20th birthday. A parent or guardian can also bring the claim earlier as a "next friend" on the child's behalf.

The legal deadline is generous. The practical deadline isn't. Hospital staff retire, medical records become harder to contextualise, and expert witnesses are more difficult to engage for events that happened 15 or 18 years earlier. Early action produces stronger cases, even when the legal clock hasn't started.

Claims involving disability

The limitation clock is suspended entirely while a person lacks the mental capacity to manage their own affairs. The clock won't restart unless and until that person regains capacity. The Assisted Decision-Making (Capacity) Act 2015 [6], fully commenced in April 2023, replaced the old ward of court system with a tiered framework of decision-making supports. This area requires careful legal and medical assessment.

Fatal injury claims

Dependants of a person who dies as a result of medical negligence can bring a claim within two years from the date of death, or two years from the dependant's own date of knowledge, whichever is later. This allows for situations where a family doesn't immediately realise the death was connected to negligent care. Only one claim for the fatal injury can be brought, though it may be brought on behalf of multiple dependants.

When multiple clocks run at the same time

A single medical event can trigger separate claims with different limitation start dates. A birth injury, for example, can generate a mother's claim (which runs from her date of knowledge, often close to delivery) and a child's claim (which doesn't start until the child turns 18). A death from negligence may produce dependant claims where each dependant has a different date of knowledge. Claims against different defendants from the same event, such as the HSE and a private consultant, may also run on separate timelines. Tracking which clock applies to which claim and which defendant is essential when more than one person was harmed or more than one party was responsible.

How to stop the clock (and the only way that works)

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Issuing court proceedings is the only action that stops the limitation clock for a medical negligence claim in Ireland. Unlike standard personal injury claims, medical negligence claims are exempt from the Injuries Resolution Board. There's no IRB application to pause the deadline. There's no letter of claim that freezes the timer. The clock stops only when a Personal Injuries Summons is filed with the High Court [7].

What this means in practice: your solicitor prepares a Personal Injuries Summons, files it at the Central Office of the High Court, and receives a stamped copy. The limitation clock stops on the date of issue, not on the date the defendant is served. Service can happen later. The summons must contain specific particulars of negligence as required by the Civil Liability and Courts Act 2004 [12], though protective writs are sometimes filed with preliminary particulars when the investigation is still underway.

When the deadline is approaching and no expert report is available, solicitors issue a "protective writ." This is a Personal Injuries Summons filed specifically to stop the clock, even before the case is fully investigated. It preserves the claimant's right to pursue the claim while further evidence is gathered.

Medical negligence and the IRB: the exemption that catches people

Medical negligence claims are fully exempt from the Injuries Resolution Board (IRB) process. Under Section 3(d) of the Personal Injuries Assessment Board Act 2003 [8], clinical negligence actions bypass the IRB entirely and proceed directly to court through a solicitor. This is not optional: there is no IRB route available for medical negligence.

Why this matters for time limits: standard personal injury claims benefit from a "pause" mechanism. When you file a claim with the IRB, the two-year limitation period is effectively suspended until the IRB issues an authorisation. Once the authorisation is granted, you get an additional six months to issue court proceedings. Medical negligence claimants get no such pause. The two-year clock runs continuously from date of knowledge until court proceedings are issued. This makes the medical negligence deadline significantly more pressured than the standard personal injury deadline, even though both begin as two-year limits on paper.

A detail that catches many claimants off guard: some solicitor websites and general legal guides suggest that "all personal injury claims must go through the IRB first." That's true for workplace accidents, road traffic collisions, and slips and falls. It's not true for medical negligence. Relying on this incorrect advice and filing with the IRB instead of issuing proceedings could cost you your entire claim.

Since April 2025, medical negligence proceedings in the High Court are managed through a dedicated Clinical Negligence List, established by Practice Directions HC131 and HC132 ^[7]. This list provides specialist judicial oversight, structured case management, and mandatory mediation engagement before trial.

The 3-year extension that isn't law yet

The proposed extension of the medical negligence limitation period from two years to three years has not been commenced. Section 221 of the Legal Services Regulation Act 2015 ^[2] was enacted over ten years ago. It provides for a three-year limitation period for clinical negligence actions. As of March 2026, this section remains entirely uncommenced.

The extension is conditional on the introduction of pre-action protocols for clinical negligence. These protocols, which would require structured pre-court steps such as early disclosure of records and exchange of expert reports, have been recommended by multiple reviews, including the Administration of Civil Justice Review (2020) and the Interdepartmental Working Group on Rising Health-Related Claim Costs (September 2024). In March 2025, the Minister for Justice confirmed the regulations remain "under active consideration." The Government's Action Plan for Insurance Reform 2025–2029 targets progress by Q3 2026, but no commencement order has been made.

Do not plan around a law that isn't in force. The current deadline remains two years less one day. Multiple websites incorrectly state that Ireland has a three-year limit, sometimes by conflating Irish law with the UK Limitation Act 1980 [9]. This confusion is dangerous. Relying on an uncommenced provision could leave you permanently time-barred.

Open disclosure under the Patient Safety Act 2023

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A mandatory open disclosure meeting can crystallise your date of knowledge. Since 26 September 2024, the Patient Safety (Notifiable Incidents and Open Disclosure) Act 2023 [10] requires Irish healthcare providers to formally disclose specified serious patient safety incidents, such as wrong-site surgery, death due to medication error, and certain maternity events.

The interaction with time limits is this: once a hospital tells you at an open disclosure meeting that a notifiable incident occurred, you arguably possess the facts needed to satisfy the four-element date of knowledge test. Your two-year clock may start from that meeting, regardless of when the underlying treatment happened.

There's an important protection. Under Section 10 of the 2023 Act, information shared and any apology given during a notifiable incident disclosure meeting are not admissible as evidence of fault in clinical negligence proceedings. The apology doesn't constitute an admission of liability. However, the factual disclosure itself can trigger the limitation period.

One detail that surprises clients: requesting your medical records after an open disclosure meeting doesn't give you additional time. The date of knowledge is arguably the disclosure meeting itself, not the later date you receive and review the records. Patients sometimes assume the limitation clock starts only when records arrive. It doesn't. The moment you're told that a notifiable incident occurred, you may already have enough knowledge to satisfy the four-element test, and the two-year countdown may have begun.

After you issue proceedings: the post-issue delay trap

Issuing proceedings within the two-year deadline isn't enough on its own. You must also actively progress your case afterwards. In Kirwan v Connors [2025] IESC 21, the Supreme Court introduced a new framework for dismissing claims due to post-issue delay, replacing the long-standing Primor test with specific time thresholds:

• 2+ years of inactivity after issue: the court may dismiss the case, though the defendant must show real prejudice or strong reasons.
• 4+ years of inactivity (where oral evidence is needed): the case should be dismissed unless the plaintiff provides a compelling explanation for why it can still be fairly tried.
• 5+ years of inactivity: the court has wide discretion to dismiss unless exceptional circumstances of justice or fairness apply.

The Medical Protection Society's 2024 data [11] shows that the average Irish clinical negligence claim takes 1,462 days (four years) to resolve. Given this reality, any period of inactivity during the case now puts the claim at direct risk under the Kirwan framework, even though the proceedings were issued within the limitation period. Courts are less tolerant of dormant cases than at any point in Irish legal history.

Your 48-hour action plan

Take these steps within the first 48 hours of suspecting medical negligence to protect your right to claim:

1. Request your full medical records. Write to the hospital or GP practice citing the Data Protection Act 2018. Specify that you want all clinical notes, imaging, test results, discharge summaries, and nursing notes. Keep a dated copy of your request.
2. Write down what happened. Record dates, names of treating doctors, what you were told, and when you first suspected something went wrong. This contemporaneous note can become critical evidence of your date of knowledge.
3. Contact a medical negligence solicitor. A solicitor experienced in medical negligence claims in Ireland can assess whether you're within the time limit, arrange for an expert opinion, and issue protective proceedings if the deadline is approaching. 01 903 6408.
4. Don't wait for an expert report before acting. The Monaghan v Molony [2024] precedent confirms that passive delay while awaiting an expert opinion doesn't extend the limitation period. Get legal advice first.

Ireland vs UK: key differences in medical negligence time limits

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Comparison of medical negligence time limits: Republic of Ireland vs England and Wales. These are different legal systems with different rules.

Factor	Ireland	England and Wales
Standard time limit	2 years less one day	3 years
Governing statute	Statute of Limitations (Amendment) Act 1991	Limitation Act 1980, s.11
Date of knowledge	Yes, 4-element test	Yes, similar concept under s.14
IRB/pre-action step	Exempt from IRB. Proceeds directly to court	Pre-action protocol mandatory
Court discretion to extend	No general discretion to extend time	Court can disapply the time limit under s.33
Children	Clock starts at 18	Clock starts at 18
Proposed changes	3-year extension enacted but uncommenced	Already 3 years

The most significant difference: Irish courts have no general discretion to extend the time limit for medical negligence claims. In England and Wales, Section 33 of the Limitation Act 1980 gives courts the power to disapply the limitation period entirely if it's "equitable" to do so, considering factors such as the reasons for delay and the prejudice to each party. No equivalent provision exists in Irish law. Once the two-year period has expired without proceedings being issued, the claim is statute-barred. The court cannot override the deadline, no matter how sympathetic the circumstances. This makes the Irish limitation regime one of the most rigid in common-law jurisdictions for medical negligence claims.

What if my situation is more complex?

The rules above cover the standard cases. However, some situations involve additional complexity that can affect your time limit. These edge cases don't change the basic two-year rule, but they can affect when the clock starts and how the court assesses your knowledge.

Delayed diagnosis or gradual harm

Conditions like cancer, where a delayed diagnosis may not be discovered for years after the negligent failure, often hinge on the date of knowledge test. The clock starts when you first knew, or should have known, the delay caused you harm. A second opinion that reveals an earlier misdiagnosis is a common trigger.

Multiple episodes of negligence

Some claims involve a series of connected failures over time, such as repeated missed test results or ongoing medication errors. Each distinct act of negligence can have its own date of knowledge. Your solicitor must identify the specific events and determine which time limits apply to each.

Deliberate concealment of negligence

Under Section 71 of the Statute of Limitations 1957 [14], the limitation period may be postponed if the defendant deliberately concealed facts material to your right of action. The clock doesn't start until you discovered, or could reasonably have discovered, the concealment. This exception is narrow and rarely invoked, but it can apply where medical records were altered, test results were suppressed, or a known error was actively hidden from the patient.

Claims against the HSE

Claims against public hospitals are managed by the State Claims Agency under the Clinical Indemnity Scheme. The HSE remains the defendant. The same two-year time limit applies, but the SCA's involvement can affect the pace and approach of the defence. Understanding how the SCA operates is part of the practical reality of pursuing a hospital negligence claim in Ireland.

Common questions about medical negligence time limits in Ireland

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How long do I have to make a medical negligence claim in Ireland?

You have two years less one day from your date of knowledge to issue court proceedings. The date of knowledge is when you first knew, or should have known, that negligent medical care caused you injury.

• The deadline is set by the Statute of Limitations (Amendment) Act 1991.
• Medical negligence claims bypass the IRB entirely.
• Only issuing a Personal Injuries Summons stops the clock.

Why it matters: missing the deadline by even one day permanently bars your claim.

Next step: Date of knowledge guide

What is the time limit for children?

The two-year clock doesn't start until the child's 18th birthday, giving them until the day before their 20th birthday to issue proceedings. A parent or guardian can bring the claim earlier on the child's behalf.

• Early action preserves evidence and produces stronger cases.
• Hospital records become harder to interpret over time.
• Expert witnesses are harder to engage for old events.

Why it matters: the legal window is generous, but the practical window for building evidence isn't.

Next step: Birth injury claims guide

Does getting an expert report give me more time?

No. Monaghan v Molony [2024] IEHC 287 confirms that an expert report does not reset the limitation clock. The court held that passive delay while waiting for an expert opinion doesn't pause the statutory period, particularly where the claimant already possessed foundational facts suggesting negligence.

• Seek legal advice before waiting for a medical expert.
• Your solicitor can issue protective proceedings while evidence is gathered.

Why it matters: waiting for an expert is one of the most common reasons valid claims become time-barred.

Next step: Contact a solicitor immediately. 01 903 6408

Does filing with the IRB pause the time limit?

No. Medical negligence claims are exempt from the Injuries Resolution Board under Section 3(d) of the PIAB Act 2003. Filing with the IRB will not stop the clock and does not count as issuing proceedings.

• Only a Personal Injuries Summons filed in the High Court stops the clock.
• Standard personal injury claims do get an IRB pause. Medical negligence does not.

Why it matters: acting on incorrect advice about IRB requirements could cost your entire claim.

Next step: IRB process (Citizens Information) ^[3]

Is the time limit 3 years in Ireland?

Not yet. Section 221 of the Legal Services Regulation Act 2015 provides for a three-year limit, but this provision has never been commenced. The current legal deadline remains two years less one day. Do not rely on the three-year figure.

• The extension depends on pre-action protocols that haven't been introduced.
• Some websites incorrectly state the limit is already 3 years.
• Others confuse Irish law with the UK's 3-year limitation period.

Why it matters: relying on an uncommenced law could leave you permanently time-barred.

Next step: LSRA 2015, s.221 (Irish Statute Book) ^[2]

What if I've already missed the deadline?

Irish courts have no general discretion to extend the time limit for medical negligence claims. Unlike England and Wales (where Section 33 of the Limitation Act 1980 allows courts to disapply the limit), there is no equivalent provision in Irish law. However, the date of knowledge test may mean the clock started later than you think.

• Get immediate legal advice. Your actual date of knowledge may be more recent than you assume.
• A second opinion, open disclosure meeting, or receipt of medical records can establish a later start date.

Why it matters: many people assume they're out of time when the date of knowledge test would protect them.

Next step: Date of knowledge deep-dive

What is the time limit for fatal medical negligence claims?

Dependants have two years from the date of death, or two years from when the dependant first knew (or should have known) the death was linked to negligence, whichever is later. This is governed by Part IV of the Civil Liability Act 1961.

• Only one fatal injury claim can be brought, though multiple dependants may benefit.
• An inquest finding can establish the factual connection to negligence.

Why it matters: families often need time to grieve before considering legal action. The date of knowledge rule provides a measured window.

Next step: Medical negligence compensation guide

Can my case be dismissed even if I issued proceedings on time?

Yes. Kirwan v Connors [2025] IESC 21 introduced new thresholds for dismissing cases due to post-issue delay. Two or more years of procedural inactivity creates a risk of dismissal, and four or more years makes dismissal likely where oral evidence is required.

• The average Irish clinical negligence claim takes four years to resolve.
• Your solicitor must keep the case actively progressing after issue.
• Documenting reasons for any unavoidable waiting periods is critical.

Why it matters: issuing in time protects the deadline, but inactivity afterwards can still kill the case.

Next step: How long does a claim take?

Related questions

Does open disclosure start my time limit? A mandatory open disclosure meeting under the Patient Safety Act 2023 can crystallise your date of knowledge. Once the hospital tells you a notifiable incident occurred, you may be deemed to have the knowledge needed to trigger the two-year clock.

Can I change solicitor without losing time? Changing solicitor doesn't pause or reset the limitation period. The clock keeps running regardless. A new solicitor will need time to review files, which eats into the available window.

What if my medical records are missing? You're entitled to your records under GDPR and the Data Protection Act 2018. Hospitals that delay or obstruct access may face Data Protection Commission complaints. Missing records don't extend the time limit, but they can affect how the court assesses your date of knowledge.

References

[1] Statute of Limitations (Amendment) Act 1991, s.2 — Date of knowledge (Irish Statute Book, primary legislation)

[2] Legal Services Regulation Act 2015, s.221 — Clinical negligence limitation period (uncommenced) (Irish Statute Book, primary legislation)

[3] Injuries Resolution Board (Citizens Information, Irish government service, updated 2025)

[4] Data Protection Act 2018 (Irish Statute Book, primary legislation)

[5] Civil Liability Act 1961, Part IV — Fatal injury claims (Irish Statute Book, primary legislation)

[6] Assisted Decision-Making (Capacity) Act 2015 (Citizens Information, Irish government service, updated 2025)

[7] Practice Direction HC132: Clinical Negligence List (Courts Service of Ireland, effective April 2025)

[8] Personal Injuries Assessment Board Act 2003, s.3 — Medical negligence exemption (Irish Statute Book, primary legislation)

[9] Limitation Act 1980, s.11 (UK legislation, for comparison only)

[10] Patient Safety (Notifiable Incidents and Open Disclosure) Act 2023 (Irish Statute Book, primary legislation, commenced 26 September 2024)

[11] Clinical Negligence Claims: The Human and Financial Cost (Medical Protection Society / Medical Independent, 2024)

[12] Civil Liability and Courts Act 2004, s.10 — Verifying affidavit (Irish Statute Book, primary legislation)

[13] Making a Complaint (Medical Council of Ireland, regulatory body)

[14] Statute of Limitations 1957, s.71 — Fraud and concealment (Irish Statute Book, primary legislation)

Related internal guides: Medical negligence solicitor • Date of knowledge • Compensation guide • Delayed diagnosis • Misdiagnosis claims • How long does a claim take? • Hospital negligence

Next in this series

Date of Knowledge in Medical Negligence: The 4-Element Test Explained

How Long Does a Medical Negligence Claim Take in Ireland?

How to Prove Medical Negligence in Ireland

This is general information about Irish law, not legal advice. Every case depends on its specific facts. Consult a solicitor for advice on your situation.