K9 and the nanny state…
“ Professor Karol Sikora, former chief of the World Health Organisation's cancer programme added: 'Given the cost of enforcing it and the cost to the hospitality industry, in terms of public health gain, is just not worth it.'
He added that previous policies including the 2007 indoor smoking ban had made a 'huge difference' in reducing smoking rates.
However these wouldn't be replicated by a 'nanny state' outdoor ban.
'To not allow smoking in public spaces outside is too far, over-the-top, and impossible to police,' he said.
'And those who have decided they're going to smoke, no matter what, are going to continue anyway.'
He added that a person outdoors would need to stand surrounded by '10 or so smokers' for there to be a substantially increased risk of suffering health consequences from second-hand smoke.
Meanwhile, Dr Lion Shahab, an expert in health psychology and Co-Director, University College London's Tobacco and Alcohol Research Group told MailOnline the chance of getting health issues from second-hand smoke outdoors was 'likely very low'.
He said: 'The intention with this legislation is probably not necessarily to reduce second hand exposure, there will be some small effects, but it's going to be quite low because of wind blowing smoke away.”