The Chivas swirls over ice in crystal tumblers, the air is thick with herbal substances and Ecstasy fuels languid moves on the dance floor. Suddenly there are screams. A dazed peace is shattered by police sirens, batons and officers demanding urine tests en masse in the car park outside. It is scene now repeated regularly across Bangkok as police in search of designer drugs hit a select string of luxury nightclubs and private apartments where the in-crowd party. They form a relatively tiny group and their youthful ranks include television stars, celebrities and musicians apparently immune from recession. In a capital where austerity is suddenly hip, their plight wins little apparent public sympathy and has galvanised police action. 'They may be rich and talented and even famous, but they are not immune from the law,' one senior police officer said. 'We know the public are behind us and our fight will continue.' At least one top young starlet has already been made to feel well and truly out in the cold, revealing the deep-set conservative vein that runs through Bangkok's outwardly liberal facade. Now Wannaporn 'Sai' Chimbunchong has launched a bid to assert her innocence and kick-start an entertainment career shattered in a raid on a private party last month. The 17-year-old was pulled from a party in the swank Vibhavadee View apartments with 10 other youngsters, including her 15-year-old brother. Put under arrest and forced to give blood and urine samples, her case has electrified the Thai press even before it has gone to court. The samples have since been declared negative. But, Wannaporn, Miss Teen Thailand two years ago, has not had one offer of work since her arrest, she recently claimed. She now speaks with a bitterness more in keeping with an older woman. Already, she says, she has lost five kilograms from her tiny frame during 'the most difficult period in my life'. 'If the courts decide I am innocent, who will take responsibility for the judgment that society has already handed down on my case? Who? I'd really like to know.'