Also regulations on swiss knives, if true, is ridiculous. I've heard they're designed specifically so that you can't kill someone with them. Either way it's bad for buisness here so that's ridiculous.
In certain zones under a "magistrate jurisdiction", they can enforce a rule that says
any blade longer than 5 inches* is a lethal weapon.
Otherwise, back on topic.
Game save editing and game cheat devices are now illegal in Japan, but lolicon is still A-OK. The Japanese sure do have their priorities straight....*Material for a penis joke.