Filipino Scandals

Hayden Kho and Katrina Halili tested negative on the drug test. Is anyone surprised? Does anyone believe that Hayden Kho would test positive. He's a doctor, for crying out loud! Of course, he knows some tricks on how to negate the effect of drugs. He even admitted in the senate that he knows how to counter the effect of Ecstasy. The test is in itself futile and a waste of resource. Hayden Kho already admitted that he used drugs in the past. So what's the purpose in all this testing?