Contributory negligence is no defence against lax safety protocols

Familiarity with hazardous machinery can easily lead to dangerous workplace complacency, but a recent judgement highlights that employers and business owners cannot avoid their primary safety responsibilities, even after an injured contractor willingly steps into a danger zone.

Background:

This litigation arose from a catastrophic workplace accident on 9 November 2024 at a commercial skip hire yard, which resulted in a high-stakes legal dispute over the apportionment of liability between a site occupier and an independent contractor. The claimant, a director of G. Richardson Agri Ltd with forty-five years of experience in agricultural engineering, visited the defendant’s yard following a telephone request from the defendant's director, Mr. Tom Gardiner. The purpose of the visit was to obtain technical details and measurements from a heavy demolition grab attachment fitted to a Caterpillar Waste Handler ("the Caterpillar") so that his business could source replacement blades.

The physical mechanics of the site visit were captured clearly on CCTV footage. Upon the claimant’s arrival at approximately 12:30 PM, an employee of the defendant company, Mr. Bella Kovacs ("Bella"), was operating the heavy machinery. Bella scaled the operator's cab and ignited the engine, which automatically illuminated a flashing orange hazard light on top of the chassis. To facilitate the inspection, Bella adjusted the hydraulic arm to lower a heavy grab attachment. The claimant then stepped directly into a narrow, restricted physical gap between the descending grab and the primary body of the Caterpillar to rub dirt and grease away from a technical serial number. While the claimant was standing in this hazardous crushing zone, Bella inadvertently knocked the highly sensitive joystick control lever inside the cab. Because a critical isolation switch had not been engaged to deactivate the levers, the hydraulic grab suddenly retracted, crushing the claimant's legs against the machine's chassis and leading to bilateral through-knee amputations. The Health and Safety Executive (HSE) subsequently investigated the site, identifying definitive operational contraventions of Sections 2(1) and 3(1) of the Health and Safety at Work etc. Act (HSWA) 1974, alongside Regulations 8(1) and 9(1) of the Provision and Use of Work Equipment Regulations (PUWER) 1998.

Decision:

Following an earlier order entering primary judgement for the claimant, Her Honour Judge Emma Kelly resolved the issue of contributory negligence by strictly applying the objective framework from Badger v MoD. Under the objective standard established in Froom v Butcher, the Court ruled that the claimant was at fault for failing to take reasonable care for his own safety. The Judge rejected the argument that the collective comfort of the experienced men on site excused the behaviour, finding instead that walking into an active crushing zone while the machine's flashing beacon was lit crossed the line into objective recklessness. The Court also held that the common-sense safety controls in the claimant’s own risk assessment regarding "running machinery" should have been followed, and under Jones v Livox Quarries Ltd, he failed to guard against the foreseeable carelessness of others.

When apportioning liability under Section 1(1) of the Law Reform (Contributory Negligence) Act (LRCNA) 1945, the Court rejected the defendant’s request for a 33.3% to 40% reduction. Applying Caswell v Powell Duffryn Associated Collieries Ltd, the Judge ruled that the primary causative potency and moral blameworthiness rested overwhelmingly with the defendant. Because the defendant had exclusive control over the heavy plant machinery and failed to engage the vital safety isolation switch required by PUWER, it was held four times as responsible as the contractor, resulting in a final contributory negligence deduction of exactly 20%.

Implications:

This judgement provides vital operational lessons regarding health and safety responsibilities and the division of civil liability when managing workers on commercial sites. The primary takeaway is that vicarious liability will almost always outweigh a contractor's independent expertise. If your business operates dangerous machinery, you bear the primary legal duty to maintain absolute control over that environment and cannot escape your core health and safety obligations by arguing that an injured contractor should have looked after themselves.

Furthermore, this decision proves that widespread industry familiarity is no shield against legal fault. Even if all parties subjectively agree, after a cursory check, that a site superficially appears to be ‘safe’, the courts will apply a strict, objective standard where entering the path of a live machine before a total shutdown is executed constitutes a clear failure to take reasonable care. This means that internal safety rules must be applied to brief diagnostic tasks and visual checks; judges will expect common-sense safety steps, such as isolating machine controls, to be enforced, regardless of how minor a task seems. Ultimately, while a finding of contributory negligence will slightly reduce a compensation award, the financial burden remains heavily concentrated on the employer who fails to implement strict site discipline or fails to ensure that its operators actively engage physical isolation locks to neutralise live operational hazards.

Source:EWHC | 12-07-2026