Of course it has other uses too

Shachihata, a company that sells personal seals, has developed a stamp that allows victims to mark their attackers with invisible ink, which can be detected under ultraviolet light. A trial run of 500 anti-groping stamps, priced at ¥2,500 ($23), sold out within 30 minutes.

Here is more from The Economist, via Hugo.


How does one know the invisible ink is on an attacker and not someone brushed on the subway? Unless the invisible ink is on, well, a part not ordinarily exposed on the subway. Then, where would the body part be exposed, and why? Tech and the the surveillance state it has produced is turning everyone into a psychopath, a witness against everyone else.

Also, how do you discreetly stamp somebody.

The irony! If you "stamp" someone then you have assaulted them.

How susceptible might the invisible ink be to being washed off, whether under UV light or any other kind of light?

Does Shachihata also manufacture UV flashlights so that self-identifying victims can ascertain or confirm that they properly applied their secret sauce invisible ink to the persons of their alleged attackers? (Does S. also manufacture the soap brand most likely to remove all traces of the invisible ink?)

Without even Googling this, I've seen the patents on such "anti-rape" rings years ago, as in well over 20 years ago. The main idea is in the public domain.

Bonus trivia: it never ceases to amaze me how engineers refuse to search the public domain for inventions, and instead prefer to 'reinvent the wheel', aka the "Not Invented Here" syndrome.

Now Ray is making allusions to around the world ("reinvent the wheel"). And I thought Ray had no sense of humor.

Vice has a rundown of such things:

Ich glaube dass, meiste leute glauben expression of what Americans call Werkzeug. Meiste Leute glauben die Anzug ist mehr wichtig dann die Antwort aber ich verstehe, dass wie Gefängniszelle.

So, an anti-tramp stamp?

An anti-Trump stamp.

And I thought the Japanese were honorable people. This behavior is just bizarre.

Couldn't I just hit someone, mark them with this, and then use the stamp on them as "proof" that I was acting in self-defense?

Should be popular in America. Stamp and accuse, proof in hand. Americans love playing the victim (not to stereotype Americans in particular, but this is a country where anything can be "abusive" and "inappropriate" and everthing has a sexual aspect. Puritan background maybe).
Groping is thought to be a problem on crowded trains on certain lines in Tokyo (and elsewhere). It is rare but not a fantasy. Fortunately nothing like this could happen in Brazil.

Trump's into the whole groping strangers. America has its perverts too. We elect them to office.

I believe that, most people believe expression of what Americans call tool. Most people believe the suit is more important then the answer but I understand that like prison cell.

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