Kirsty is an expert in public and criminal international, constitutional and human rights law. She spent 2 months working on capital punishment cases in Jamaica in 2005 and, in 2012, was elected Chairwoman of the Bar Human Rights Committee of England and Wales. In 2013 she mediated an apology from President Santos of Colombia to the San Jose de Apartado peace community. It was described as an "historic moment" in Colombia's violent history.
Kirsty has acted for two Chief Justices (Trinidad and Tobago and Gibraltar), a former President (Maldives) and former politician (British Virgin Islands). She works extensively in the area of torture and universal jurisdiction. In 2013, she was granted permission in an ongoing judicial review against the DPP's decision that Prince Nasser bin Hamid Al-Khalifa of Bahrain enjoys diplomatic immunity from prosecution. Kirsty has led three years of training in child rights in Nigeria including to the National Human Rights Commission. Currently, her work includes an alleged Boko Haram child terrorist case in Nigeria, presenting evidence to the UN of sexual violence against Tamil men and women by Sri Lanka, mediation in Colombia and representing Amnesty International against the security services.