Editorial. Discusses the uses of bar glasses as weapons in violence in the United Kingdom (UK) during the mid-1980s, while highlighting preventative measures tested in a materials laboratory. Findings of a multi-centre survey on violence due to bar glass; Opinion of accident and emergency department doctors on injuries; Indepth look at the test; Estimation on the annual cost of replacing bar glassware in the UK; Advantage of tempered glassware being used by some manufacturers.