Investigate Review existing sources, like workplace sick leave, accident, compensation and pension records. Don’t forget retired members – many cancers take decades to emerge, so may only occur after a worker has finished working. Newspaper reports may highlight local deaths linked to occupational disease. Where there is a suspicion of a problem, dig deeper. Surveys Do-it-yourself research can quickly identify problems. This need not be a highly scientific and time-consuming business. A union rep could ask workers on their lunch break if they have concerns about a particular job or substance, or if they had noticed any worrying sick.