How North Korea is trying to tackle smoking

How does a country like North Korea tackle one of the world's highest smoking rates when its leader sends the wrong message by constantly lighting up in public?

There have been a number of campaigns against smoking in the country, where nearly half of all men but no women smoke, according to data from the World Health Organization.

A law passed earlier this month specified a ban on smoking in public places in North Korea and set out rules to provide a "more cultured and hygienic" environment for the people.

But state media often show Supreme Leader Kim Jong-un with a cigarette in hand, setting a bad example. So what exactly do the country's anti-smoking measures achieve?