Addiction dating websites sagazone dating
Japan only banned the production and distribution of child porn in 1999, mandating punishment of up to five years in prison.
Kyoto today is still the only one of Japan's 47 prefectures that threatens prison for possessing child porn.
Their conservative opponents, the Liberal Democrats, have promised a tougher line.
Until then, say campaigners, paedophiles will continue to have the upper hand.
In 2009, the Canadian Centre for Child Protection placed Japan fourth among the top five countries hosting websites with child abuse images, according to ECPAT International, an NGO that fights to end the commercial exploitation of children.
It is the only OECD (Organisation of Economic Co-operation and Development) nation that has not banned possession of child porn, partly to protect its manga and anime industries, which churn out thousands of titles every year that sail close to the legal wind.
But the ban was resisted by Japan's biggest publishers, who produce hundreds of risqué manga a year featuring fetishism, incest and "Lolita porn", along with more mainstream fare.
The Tokyo Bar Association also criticised the wording of the legislation, warning that it could be the thin edge of the censorship wedge against sexualised images of any kind.
It was a shocking find: crudely made DVDs with images of grown men having sex with children as young as 12.
Until this year, the men who bought those images faced little more than a slap on the wrist.