THE battle of two Thai actresses to clear their names after their photographs appeared on billboards outside a Tsim Sha Tsui sauna parlour is bound for court in Hong Kong. The Law Society of Thailand has announced it will file a writ in the SAR for damages against the Happy Valley Sauna, in a suit that has the full backing of the Thai Foreign Ministry. Bussakorn Pornwannasirivej has already filed Thailand's first international defamation complaint with Thai police after the discovery last week that she was featured with fellow starlet Kallaya Lertkasemsap outside the sauna. Her move means the Happy Valley's owners face arrest if they are caught on Thai soil. 'My friends, my family and other actresses are as incensed as I am,' Bussakorn said. 'We understand there may have been other instances in which we have been exploited like this. I think it is time we stood up for our rights. 'I have never even visited Hong Kong, let alone had anything to do with any sauna.' Bussakorn said she would come to Hong Kong to fight the case if necessary and hoped the case would serve as a precedent to protect other actresses. The 28-year-old is one of most popular starlets in Thailand after a successful modelling career led to roles in soap operas, action films and variety shows. Meetings with senior civil servants have pushed the Government into action to protect the reputation of Thai women in the international arena. 'We must safeguard the image of our women abroad,' Deputy Foreign Minister Sukhumbhand Paribatra told the Sunday Morning Post. 'This case concerns me as an MP and a Deputy Foreign Minister. 'We will provide whatever advice we can as a minimum,' he said. 'In the longer term, Thai society should have a good look at itself, too, to see what it can do to better protect the image of Thai women.' The Foreign Ministry has also lodged a protest with the SAR Government. A spokesman for the Happy Valley Sauna, in Chatham Road South, said the woman on its poster was not Bussakorn. All its pictures featured Japanese women and were supplied by an agency, the spokesman said.