Question to the Home Office:

To ask the Secretary of State for the Home Department, with regard to the Animals in Science Regulation Unit Annual Report 2024, published in December 2025, what action her Department took against the provider that re-used mice in a second experiment without project licence approval; and what steps her Department is taking to prevent animals from being used in unlicensed experiments.

Regarding the case of non-compliance in question, Inspector advice was issued to the licensee. The licensee was notified on what provision was breached and what is expected in future to prevent recurrence. All cases of non-compliance and actions taken are published and available here: www.gov.uk/government/collections/animals-in-science-regulation-unit-annual-reports.

All licensed establishments must fully uphold the required standards for animal welfare as set out in the Animals (Scientific Procedures) Act 1986 (ASPA) and the Code of Practice for the Housing and Care of Animals Bred, Supplied or Used for Scientific Purposes. The Animals in Science Regulation Unit (ASRU) conducts audits to assure establishments’ compliance and takes matters of non-compliance very seriously.

ASRU has published its compliance framework (www.gov.uk/guidance/animal-testing-and-research-compliance-with-aspa) which explains how it identifies and investigates potential incidents of non-compliance and decides on appropriate and proportionate measures and remedies where non-compliance has been found to occur.