As Minister of Internal Affairs between 2014 and 2017 Dunne extended the term of the New Zealand passport from 5 years to 10 years and led the development of an integrated national fire and emergency service, Fire and Emergency New Zealand, to replace the New Zealand Fire Service and the separate Rural Fire Service. He also oversaw the He Tohu project which saw three of New Zealand's most precious constitutional documents – the 1835 Declaration of Independence, the 1840 Treaty of Waitangi, and the 1893 Women's Suffrage petition – rehoused in a purpose built facility at the National Library.