Question to the HM Treasury:

To ask the Chancellor of the Exchequer, with reference to the oral contribution of the Chief Secretary to the Treasury in the urgent question on the resignation of the chair of the OBR at column 991, 3 December 2025, whether special advisers have been required to provide access to the leak inquiry to communications on personal and government issued mobile devices and computers.

On 9 February, the Government published its Review of Budget information security. This includes the outcomes and recommendations of the Cabinet Office’s leak inquiry. All individuals and organisations in government who had access to the relevant information were in scope, including special advisers.