POL00107710 - Letter from Paula Vennells to The Rt Hon Oliver Letwin MP re robustness of Horizon and invite to head office to witness how Horizon system works. Attachments POL00107710.pdf (206.96 KB) Evidence information Document date 4 April 2012 Hearing Phases 5/6 - 10 April 2024 Witness Paula Vennells The Rt. Hon. Lord Arbuthnot of Edrom Evidence type Letter Related content WITN01020100 Paula Vennells - First Witness Statement Share this page