Question to the Home Office:

To ask His Majesty's Government, following the commitment in the Replacing Animals in Science Strategy, published in November 2025, to "accelerate uptake in alternative methods through reform of animals in science regulation", and reports of non-compliance described in the Animals in Science Regulation Unit Annual Report 2024, published in December 2025, whether they plan to undertake a wider review of the adequacy of regulation in this area; what steps they will be taking to prevent non-compliance; and whether they plan to review the wider performance of the Animals in Science Regulation Unit, including its use of sanctions in response to non-compliance.

The Government remains fully committed to continuous improvement in the regulation of the use of animals in science, and to strengthening the UK’s position as a global leader in science and innovation. As part of this, the Home Office is in the final stages of delivering a comprehensive programme of regulatory reform to further strengthen the Animals in Science Regulation Unit (ASRU), ensuring confidence in the regulatory system and maintaining robust compliance with the Animals (Scientific Procedures) Act 1986 (ASPA).

As part of the reform programme, the number of inspectors will increase from 14.5 full-time equivalent (FTE) positions at the end of 2017 to 22 FTE positions by March 2026.

All licensed establishments must fully uphold the standards for animal welfare set out in ASPA and in the Code of Practice for the Housing and Care of Animals Bred, Supplied or Used for Scientific Purposes. ASRU conducts regular audits to assure compliance and takes any instance of non-compliance extremely seriously.

ASRU’s published Compliance Policy (www.gov.uk/guidance/animal-testing-and-research-compliance-with-aspa) sets out how the regulator identifies, investigates and responds to potential incidents of non‑compliance, and how it applies appropriate and proportionate measures and sanctions where breaches are found. Through the delivery of this policy, the regulator aims to minimise the risk of future non‑compliance.

The Government’s strategy Replacing Animals in Science: A strategy to support the development, validation and uptake of alternative methods sets out a long-term vision to accelerate the development and use of nonanimal approaches. The Home Office will continue to apply ASPA’s rigorous licensing framework, ensuring that animals are only used where no validated non-animal alternative exists.