PARLIAMENTARY WRITTEN QUESTION
(29 October 2025)

To ask the Secretary of State for the Home Department, what assessment she has made of the potential impact of importing cynomolgus monkeys born in (a) Africa and (b) Asia for use in scientific procedures on the welfare of those animals.

Asked by:
Manuela Perteghella (Liberal Democrat)

The Home Office is committed to maintaining the highest standards of animal welfare regarding the use of non-human primates in scientific procedures. The use of cynomolgus monkeys in the United Kingdom is strictly regulated under the Animals (Scientific Procedures) Act 1986 (ASPA).

The Home Office commissioned a comprehensive assessment from the expert Animals in Science Committee on the welfare implications associated with the use of non-human primates bred and imported for use in scientific procedures. You can find the report here: https://www.gov.uk/government/publications/nonhuman-primates-bred-for-use-in-scientific-purposes.

Following recommendations from the Committee, the Home Office has introduced a time-limited transitional period relating to the sourcing of non-human primates. During this period, the use of first-generation cynomolgus macaques will only be permitted where there is a scientific need, where there is an inability to reasonably source self-sustaining animals, where there is a robust plan to transition to a sustainable supply, and where their use will prevent culling, thereby reducing harm. You can read the Government’s response to the report here: https://www.gov.uk/government/publications/non-human-primates-bred-for-use-in-scientific-purposes-response-from-lord-hanson.

Answered by:
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