Diana has been the Labour MP for Hull North since 2005 - the first woman elected to Westminster representing a Hull seat.
Diana has a reputation of standing up for her Hull constituents at Westminster, a strong record as a campaigning MP and is consistently one of the most frequent speakers in the Commons. Notable local successes include campaigning for Siemens to locate to Hull, supporting the expansion of the Hull-York Medical school, working cross-party on reducing Humber Bridge tolls, supporting Hull's bid to be UK City of Culture 2017, and the building of a new pumping station at Bransholme after the 2007 floods.
Diana was named Backbencher of the Year in 2018 for her work to secure a Public Inquiry into the NHS contaminated blood scandal. In the 2020 New Year's Honours, Diana was appointed as a Dame Commander for her charitable and political work.
Diana was born in the North West of England and read Law at Queen Mary College, London University. She qualified as a Barrister and worked for many years in Community Law Centres. Before entering Parliament, Diana had served as a local councillor and as a Non-Executive Director in the NHS.
Under the Labour Government between 2005 and 2010 Diana was a Parliamentary Under Secretary of State in the Department of Children, Schools and Families and a Government Whip. Since 2010, Diana has held a variety of Labour Opposition Front Bench posts, including in Home Affairs, Foreign Affairs and Health.
Currently Diana serves as one of the Parliamentary representatives on the Commonwealth War Graves Commission and is a Member of the Intelligence and Security Committee and the Home Affairs Select Committee.
Diana plays an active role on the British Inter-Parliamentary Union, the British American Parliamentary Group and Chairs several cross-party groups, including: Friends of the University of Hull, Human Rights, Left Behind Neighbourhoods, Sexual and Reproductive Health and Commercial Sexual Exploitation.
Diana is patron of the Hull and East Riding RSPCA and supports Hull and East Riding Breast Friends, a local breast cancer charity.
When not out and about in Hull North or Westminster, Diana is a fan of crime novels, cinema, chocolate cake, strong tea and black Labradors.