How did tattoo artists become legal in South Korea?

Tattoo artists have worked underground in South Korea for decades - until now.

For 34 years, only licensed doctors were allowed to ink tattoos and breaking the law could lead to heavy fines or jail.

In September, lawmakers had legalised tattooing by non-medical professionals following a sustained artists' campaign against the fear and harassment they faced.

The BBC is in Seoul, where tattooists from all the country have gathered, to explain how and why the law has changed.