Animal Testing

Debate between Irene Campbell and Michael Wheeler

Wednesday 28th January 2026 Westminster Hall

[Michael Wheeler (Worsley and Eccles) (Lab)]

I beg to move,

That this House has considered non-compliance animal testing incidents in laboratories.

It is a pleasure to serve under your chairship, Mr Western. The uncomfortable backdrop of today’s debate is that animal experimentation results in legally sanctioned animal suffering. That is the fact that we must keep at the front of our minds, especially as we pride ourselves on being a nation of animal lovers.

At the 2024 election, I was proud to stand on a manifesto commitment to work towards phasing out animal testing. The stark reality, however, is that more than 5 million animals have been approved for use in experiments over the coming years. Behind that large headline figure lie individual cases that are often deeply distressing, such as primates being subjected to invasive brain surgery. That said, the focus of this debate is not on the legality of licences, contentious though they might be, but on what happens when even the limited legal protections are not upheld. In the current system, legally sanctioned animal suffering is compounded by systemic regulatory failure.

On 12 December 2025, the Home Office Animals in Science Regulation Unit—ASRU—published its 2024 annual report, which provides a window into the shocking suffering that occurs when our animal testing safeguards fail.

[Irene Campbell (North Ayrshire and Arran) (Lab)]

Reports have shown animals accidentally crushed in a compacter, a primate dying after being trapped in a cage unnoticed, animals falling out of a vehicle and being lost, and many dying of thirst or hunger or drowning in flooded cages. Does my hon. Friend agree that those cases of non-compliance are unacceptable, that more must be done to avoid them happening in future and that the people who allow them to happen must face the consequences?

[Michael Wheeler]

I thank my hon. Friend for her intervention, and of course I agree.

ASRU is tasked with licensing animal experiments and, importantly, ensuring compliance with the Animals (Scientific Procedures) Act 1986. The reason for the Act is to protect animals and to require the use of non-animal alternatives wherever scientifically possible, yet the report shows far too many incidents in which animals were harmed, injured or killed because licence conditions were breached or basic standards were not met. These are not minor administrative errors. As my hon. Friend the Member for North Ayrshire and Arran (Irene Campbell) said, we are talking about animals drowning, starving to death, being left to die without veterinary care or being accidentally disposed of as waste.

In 2024 alone, there were 146 recorded cases of non-compliance in British laboratories. Although that figure represents a modest but welcome decrease from the previous year, the incidents still involve more than 22,000 animals. Analysis from Animal Free Research UK suggests that at least 542 animals either died or were euthanised as a direct result of those failures.

--- Later in debate ---

[Michael Wheeler]

I think it will come as no surprise to my hon. Friend that I do agree with him, and I will be making that very call.

We are in a good place when it comes to the development of alternatives. I therefore welcome the publication of the Government’s “Replacing animals in science” strategy in November.

[Irene Campbell]

I should have said this earlier, but I am chair of the all-party parliamentary group on phasing out animal experiments in medical research. Does my hon. Friend agree that the evidence is there, and that we can move much more quickly towards a place where animals are no longer needed in research?

[Michael Wheeler]

I thank my hon. Friend for another valuable intervention. I agree with her.

The Government’s strategy contains a range of positive measures, such as increasing funding for human-specific technologies, but we can move faster—more, we have an opportunity to grow the strategy by supporting cutting-edge, world-leading new technologies that are developed right here in the UK. I urge the Government to go further. I urge them to commit to the replacement of all animals in medical research in the UK by 2035. As colleagues have said, that is known as Herbie’s law, after a beagle bred for the laboratory but saved before he was used.

Herbie’s law would provide a practical, collaborative pathway to deliver the Government’s manifesto commitment to phase out animal testing. It would set a clear ambition to replace animal experiments in medical research over the next decade. It would establish expert oversight and support scientists through the transition. It has been carefully drafted by legal experts, is backed by more than 155 of our colleagues here in Parliament and enjoys strong public support.

The non-compliance incidents detailed in the ASRU report and the fact that those incidents regularly cause serious animal suffering in this country should shock us and prompt reflection and action. Ultimately, the only way to eliminate those incidents completely is to end animal testing once and for all. We need a research and innovation system that is scientifically excellent, ethically robust and animal-free. I urge the Government to strengthen enforcement, ensure the law is upheld in practice, and deliver a clear, timeframed road map to phase out animal testing.