High Court Judgment in Military Hearing Loss Claims: What It Means for Claimants

The High Court has now handed down judgment in Abbott & Others v Ministry of Defence, a significant decision arising from litigation concerning military noise induced hearing loss (NIHL).

This judgment is likely to affect both current claims and new enquiries relating to military hearing loss.

The case considered a number of test claims and addressed key medico-legal issues which will influence how thousands of military hearing loss claims are assessed going

forward.

What has the Court decided?

The Court has not introduced a new legal test. Claimants must still prove, on the balance of probabilities, that they have suffered hearing loss and that it was caused by noise exposure during service.

However, the judgment provides important guidance on how those issues should be approached in practice.

In particular, the Court has moved away from rigid or formulaic methods of diagnosing NIHL. Instead, the court emphasised that each case must be assessed on its own facts, with careful consideration of all available evidence.

Diagnosis of hearing loss

The Court confirmed that there is no single “gold standard” method for diagnosing noise induced hearing loss. However, in respect of military claims, the Court preferred the claimant’s methodology for assessing and quantifying hearing loss over that advanced by the MoD

Rather than relying on a single test or model, experts must consider the full clinical picture, including:

• Any clinical audiograms plus any in-service hearing test results.

• The individual’s history of noise exposure

• The pattern of hearing loss

• Other potential causes, such as age-related hearing loss

This means that diagnosis is a matter of professional clinical judgment, supported by evidence, rather than a simple tick box exercise.

Military noise is different

Importantly, the Court recognised that military noise exposure is not the same as industrial noise. Exposure to weapons fire and explosions involve high intensity, impulsive noise, which may affect hearing differently from continuous workplace noise.

The role of audiograms

Audiograms remain central to assessing hearing loss, but the Court made clear that they are not decisive on their own.

For example, the absence of a classic “notch” on a hearing test does not automatically rule out NIHL. However, it may make a claim more difficult to establish, depending on the overall evidence.

Causation must be proven

The Court reinforced that exposure to noise alone is not enough.

Claimants must show not only that they have hearing loss, but that it was caused by noise exposure during their service, rather than other factors such as ageing or post-service noise exposure.

This places greater emphasis on the quality of expert evidence and the need for a clear, reasoned explanation of how the deafness has been caused.

Scientific theories and emerging research

The judgment also considered developing areas of scientific research, including theories such as “hidden hearing loss” and the suggestion that noise exposure may accelerate age-related hearing loss.

The Court found that, at present, these theories are not supported by sufficiently robust evidence to be relied upon in litigation.

What about tinnitus?

The Court accepted that tinnitus, ringing in the ears, can be caused by noise exposure.

However, it made clear that tinnitus on its own does not establish noise induced hearing loss. Each case must still be supported by appropriate evidence linking the condition to noise exposure. The closer the onset of tinnitus is in time to the exposure to dangerous noise, the more likely it is to be caused by it.

If you are experiencing tinnitus, even without diagnosed hearing loss, you may still be able to bring a claim, and we would encourage you to contact us for a free consultation.

What does this mean for claimants?

Claims supported by clear evidence of hearing loss and a well reasoned expert opinion on causation remain strong.

However:

• There will be greater scrutiny of expert evidence

• Claims relying on limited or unclear evidence may face more difficulty

Important deadline for military hearing loss claims

Many military hearing loss claims are being progressed under the Ministry of Defence Matrix Scheme.

There is currently a deadline of 31 July 2026 to register claims under the Matrix Scheme. If you are unsure whether this deadline applies to you, we recommend seeking our advice as soon as possible.

How we can help

At Hilary Meredith Solicitors, we specialise in representing members of the Armed Forces and veterans in hearing loss claims.

If you believe you may have suffered hearing loss or tinnitus as a result of your military service, we can advise you on your options and whether you may have a valid claim.

Get in touch

If you would like to discuss a potential claim, please contact our team for a free, no obligation consultation.