Gillespie first began campaigning for human rights causes in opposition to the
White Australia policy. A member of Australia's parliament, Gerard Hand, raised the issue of Gillespie being asked to attend a Royal Commission inquiry into the 1982 Fijian elections and asked the Australian government to provide legal aid to her. Gillespie was briefly held as a
political prisoner during the
1987 Fijian military coups d'état as she was involved in the Movement for Democracy. She represented a Bougainvillean asylum-seeker in Australia in 1992, and found out more about Bougainville civil war. She wrote in her website, "A cry for help from behind a military blockade, as children were dying because of a lack of medicines that could save their lives, prompted me to brave the dangers and bring relief to the besieged island." An Australian politician, Gerard Hand, in 1993 welcomed charges against Gillespie being dropped for supplying medicine to Bougainvilleans although she was criticised for her efforts later in parliament by
Don Randall in 1997. In 1998, Australia's foreign minister, Alexander Downer was asked about her role in the Bougainville civil war. A critic of
U.S. foreign policy, Gillespie travelled to
Iraq as a
human shield during the
2003 invasion of Iraq. She was highly critical of capitalism, calling it "institutionalised violence". She was a long-time campaigner for women's rights. Towards the end of her life she was involved in advocating for Aboriginal rights and ==Writing==