Trocaire commissioned Hannah Grene and Emily Brennan to carry out a comprehensive review of human rights due diligence tools and methods available to businesses. The research involved a number of interviews with industry and civil society experts, and a systematic examination of the human rights due diligence methodologies currently available. The report will be used with Trocaire's country staff and partners, and in Trocaire's advocacy to the Irish government on the implementation of the Irish National Action Plan on business and human rights.