Plans to tighten access to castor beans and rosary peas have moved into public consultation, opening a new stage in the government’s response to regulatory gaps identified after the Southport attack. The proposed measures would bring plant materials containing ricin and abrin into the regulated-poisons regime in Great Britain. They have not yet changed the law: ministers are seeking evidence before deciding whether, and in what form, to proceed.
A proposed licensing requirement
Under the proposal, ricin contained in castor beans and abrin contained in rosary peas would be listed as regulated poisons. Members of the public would need a valid Explosives Precursors and Poisons licence to acquire, import, possess or use them. Retailers would be unable to sell the materials to an unlicensed member of the public; a sale outside the rules could be a criminal offence.
The distinction is important. Ricin and abrin are already subject to strict controls, but the plant materials in which they occur are not presently covered by the Poisons Act framework in the same way. Castor plants can have horticultural uses and the seeds have also been sold for decorative purposes. The consultation asks whether bringing the plants’ seeds inside the licensing system is a proportionate response while preserving access for legitimate users.
A wider overhaul of poisons controls
The seed proposals form part of a wider package of suggested amendments to the Poisons Act 1972 framework. It considers changing the status or thresholds of other poisons and explosives precursors, as well as arrangements for licence fees and records kept on business-to-business sales. One option would align the record-keeping rules for regulated poisons with those already used for regulated explosives precursors, including retaining specified customer information for 18 months.
For suppliers, particularly online marketplaces and specialist retailers, the consultation is therefore not confined to a single product line. It seeks evidence about practical effects, costs, benefits and unintended consequences for businesses, manufacturers, professional users and people with legitimate non-professional uses. That evidence is intended to shape the final policy rather than simply endorse a pre-set outcome.
The Southport Inquiry connection
The change has been prompted in part by the Phase 1 findings of the Southport Inquiry. The inquiry found that the attacker had been able to obtain castor beans lawfully, exposing a gap between controls on a dangerous toxin and controls on the material from which it could be derived. Its recommendation on weapons and poisons asked the ongoing review of castor-bean sales to consider limits on the number that could be sold in one transaction.
A targeted review of the sale and availability of castor beans was completed in May 2026. It considered potential misuse, the issue of bulk purchasing and a range of voluntary and regulatory responses. The new consultation marks the point at which those options are being tested publicly and with affected sectors. It is not, however, a finding that every purchaser or seller is acting improperly.
What happens next
The consultation opened on 1 October and is due to close on 11 November. It applies to England, Scotland and Wales, and is open to the public as well as the suppliers, retailers, manufacturers and users directly affected. A response is planned after the evidence has been considered.
Until a decision is made and any legal changes are brought into force, the proposals should not be read as an immediate general ban on gardening materials or legitimate trade. Their practical significance lies in the potential move from a gap in the present framework to a licence-based system, backed by clearer duties for sellers. The consultation will determine whether that balance between prevention, public safety and legitimate access is retained, altered or rejected.
