In 2011 Halford and her husband represented the islands at the wedding of Prince William and Catherine Middleton. She also attended the Overseas Territories Joint Ministerial Council meeting in London in 2012 with Jan Cheek and in 2013 Halford took part in a campaign to promote the interests of the Falkland Islanders following the sovereignty referendum. This included representing the Falklands at the United Nations Special Committee on Decolonisation in New York City and at the annual conference of the British Islands and Mediterranean Region of the Commonwealth Parliamentary Association. Halford stood for re-election in November 2013, but lost her seat to Phyl Rendell.