This is good, really good.

What a sick world, what happened to humanity that we need this technology for women, to be safe when going in to a club?! Leaves one almost speechless.

Indeed, and the sad part of this all, those pathetic sacks of SHAIT that do these things have more rights in the court of LAW than we do... don\'t believe me... just try and defend yourself, or someone you love ,against one of them, and then see how big the world of trouble you will find yourself in, is going to be...

They use changes in optical properties and are developing it in water, so, presumably, it works in gin and vodka. How about non-clear drinks -- whiskey, brandy, rum, wine, etc.?

This definitely is really good. @ Martin. I think the answer to your question might be found in two different directions: 1. Rape has always existed. Drugs replace brute force and a wooden club more frequent in ancient times. Rapists of the present are no macho men but rather mentally weak weirdos. 2. Until fairly recent times, most people had to relate to the same social environment most of their lives. Whatever they did would be noted by all around them. Today the word \"shame\" has mostly negative connotations, not without reason of course, but in a more closed social environment fear of \"shame\" was an extremely powerful prevention of bad actions. Also the existence of this ultimate \"shame\", meant there was an equally strong social emotion about taking care of the ones needing and deserving it.
In our society, virtually all creeps will find a space where they can feel invisible in the great mass of people, or they can create an illusion of, or an actually existing smaller context where their weak minds find accept for ugly attitudes. Thus the weaklings can feel strong by hurting the innocent or trusting or defenceless.
I have no remedy for this. Reverting to the society of old times is not realistic, and personally I would probably dislike sides of it, but helping potential victims to avoid trouble, like this detector, helps a lot. Very clearly stating our total contempt for the ugly weak minded criminals, and attacking the arenas where they feel safe might be another interesting solution. One is: I like rap, also \"gangsta-rap\" but the attitude reeks of stupid \"pussycat-macho\" and can easily be seen as acceptance for treating girls badly. Most sides of society has environments where the perception of reality is twisted. Telling them your opinion helps.
Personally, the thought of rapists makes me very angry. I never carry any type of weaponry, but if I ever witness a rape, the criminal will not survive it. Possibly the knowledge of such dis-acceptance growing in a society could stop a few rapes? Rapists are often violent, but they are ALWAYS weak cowards. They can be defeated by a bit of courage and a strong will.

GHB has never been actually recorded in a date rape because it isn\'t tasteless. It tastes like salt and most people would taste a drink with GHB and instantly assume that someone was pulling a prank by pouring salt in the drink and replace the drink. The real issue with GHB is that it is used in other countries as a mood elevator that competes with Prozac and other anti-depressants. Since GHB occurs naturally in the body it can\'t be patented, so pharmaceutical companies hate it and created the date rape myth.

This is more urban myth than reality. GHB tastes like rotten sea water no matter what you put it in.
I am dismayed that a real social problem is simpliifed to a matter of evil predators attacking innocent victims.

Dont be a victim whether you are guy or gal!

There are predators in the world, whether or not anybody thinks there \'shouldn\'t\' be. This is one way of dealing with that fact.

This has already been done with drink coasters.