Plain tobacco packaging an important role in encouraging young people to try cigarettes. First impressions in Australia indicated that smokers feel that cigarettes taste worse in plain packaging – an unexpected side effect. In addition, evidence from quantitative studies, qualitative research and the internal documents of the tobacco industry consistently identify packaging as an important part of tobacco promotion. Plain packaging can change people's attitudes towards smoking and may help reduce the prevalence of smoking, including among minors, and increase attempts to quit. Studies comparing existing branded cigarette packs with plain cardboard packs bearing the name and number of cigarettes in small standard
Tobacco packaging warning messages back of the package, and was expanded in 1994 to include eight messages covering 25% of the front top of the package. In 2000, the Tobacco Products Information Regulations (TPIR) were passed under the Tobacco Act. The regulations introduced a new set of sixteen warnings. Each warning was printed on the front and back of the package, covering 50% of the surface, with a short explanation and a picture illustrating that particular warning, for example: accompanied by a picture of a human lung detailing cancerous growths. Additionally, on the inside of the packaging or, for some packets, on a pull-out