Drink spiking one of the most read news in recent times seems to very dangerous. It means somebody sneakily adding harmful chemicals like the drug gamma hydroxybutyric acid (GHB) or the tranquiliser ketamine to another's drink in order to incapacitate them. The victim is then robbed or raped. These drugs are not only colourless, odourless but also difficult to taste, when added to the drink. Hence make it very difficult to detect it. Conventional methods such as test strips are far from perfect. Researchers have come up with a new device that when dipped into the drink passes a current through it and records the characteristics of the resulting signal. It then compares this signature with a library of known drug signatures stored in its memory to find a possible match.

However this method also seems to have lots of flaws like the cost factor, even if we do not consider that it is not very practical to carry a device every time you go out for a drink.
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