Derry trade unionists launch survey with aim of improving working conditions Members of DTUC launching the survey in Brooke Park Reporter: '); '); Derry Trades Union Council (DTUC) has launched a local workers' survey and has encouraged workers across the council area to complete it in order to build better workplaces. Chair of DTUC, Niall McCarroll, says that as a working class movement DTUC has provided a voice for workers and social justice campaigns. It aims to further reach out with the launch of a local workers survey, as it extends its solidarity with the people of Derry and District 'demanding an end to the many hardships which workers and their families experience and have experienced for far too long'.