Footage of three strikes of NUW members in 2012: - Biaida - members lobbied for an end to cash-in-hand contractors, harassment, bullying and extreme health and safety problems at the Laverton site. - Sigma - 130 members took industrial action to protect existing working conditions and job security. - Coles Toll - members went on strike for improved casual staff rights, a voluntary public holiday system, RDOs and shift loading, union rights protected in the enterprise agreement and payrises. Relevant to the history of NUW and its industrial disputes.DVDbtlc, ballarat trades and labour council, ballarat trades hall, nuw, national union of workers, coles toll, biaida, sigma, strikes, industrial relations, industrial disputes, industrial action, unions