In other words, the anti-smoking movement is violating the first principle of public health practice by doing public health harm.

Peter Hajek, director of the Tobacco Dependence Research Unit at Queen Mary, University of London, also this critical flaw in the study: ""The authors followed up smokers who tried e-cigarettes but did not stop smoking, and excluded smokers who tried e-cigarettes and stopped smoking," he said. "Like smokers who fail with any method, these were highly dependent smokers who found quitting difficult. The authors concluded that e-cigarette (use) was not helpful, but that would be true for any treatment however effective if only treatment failures were evaluated."

The consultation on the advertising rules took place amid widespread debate amongst policy makers, health professionals, charities and business about the role and safety of e-cigarettes. During the consultation we took into account the wide range of views that exist about e-cigarettes and their potential to re-normalise smoking, as well as the case being made for their public health benefits. With legislation around the promotion of e-cigarettes not coming into effect until 2016, we have moved quickly to establish a responsible framework for advertising in the UK.

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