These are the tests Thailand says prove a British-made bomb detector isn't doing its job properly. <br /><br />The government has halted plans to buy any more of the GT200 detectors after its own experiments suggested the machines had only a 20 percent success rate in correctly spotting hidden explosives. <br /><br />Thailand's prime minister announced the decision. <br /><br />[Abhisit Vejjajiva, Thai Prime Minister]: <br /><br />"Using this device in the test it was found that it could detect the exact explosive boxes only four out of 20 times. It shows it's <br /><br />insignificant, that it is no different from a random process. Therefore it's obvious that we will not buy anymore of these devices." <br /><br />The UK government has banned exports of a similar British-made detector, the ADE651, to Afghanistan and Iraq because of fears over their effectiveness. <br /><br />Thailand has already got more than 530 of the GT200 machines which cost up to 36, 000 dollars each. <br /><br />It's been widely used in security operations in southern troublespots where six years of unrest have claimed more than 3, 900 lives.
