The daughter of the couple convicted of corruption in Guangdong yesterday insisted her parents would have walked free if the court had ruled according to the evidence. She stuck by her allegation that mainland police had raided the family flat in North Point in July 1995, despite an outright denial of this by the trial judge yesterday. The court in Zhaoqing sentenced Su Zhi-yi, 67, to life imprisonment and his wife, Kam Shuk-yi, 57, to 15 years for swindling $4 million from the state-owned trading company Paraway Industries. Speaking in Hong Kong soon after the sentence, Su Suet said: 'If the court had acted according to the law, my father would have walked free. They can't provide any concrete evidence to prove the company was state-owned and that my father was a government officer. 'All the figures cited in court came from the ledgers of my father's company,' Ms Su, 33, said. 'The only way they could obtain the ledgers was to come to our home in Hong Kong to fetch them. This is solid evidence the officers did come to Hong Kong to raid our house. 'Also, if my parents were charged with corruption for taking $4 million from the company - which I don't agree is true - why do they have to surrender all their assets, not just $4 million?' The couple have been detained since December 1998 and have been prevented from returning to Hong Kong since their home-return permits were seized in 1995. Ms Su has made a report to Hong Kong police, alleging mainland officers crossed the border in 1995 and held her hostage while raiding the family's North Point flat to collect documents. According to Ms Su, police had confirmed that some mainland officers had searched her home and were now verifying the identities of the officers with mainland authorities. Ms Su and her brothers Guangcan, 30, and Guangyuan, 36, have pledged to lodge an appeal. Director of the Society for Community Organisation, Ho Hei-wah, said: 'The [mainland] officers said they had gathered evidence from Hong Kong and that they had the right to do that. Now they deny this and wash their hands of the allegation. 'Furthermore, there's nothing in the verdict to explain why Ms Kam should be given 15 years, other than saying she is a government officer and conspired with Mr Su. She was only an accountant. Is this fair?' Legco security panel chairman James To Kun-sun said: 'The police should hurry up and produce the immigration records on whether the officers came. How can the Zhaoqing court deny officers crossed the border before we have finished the investigation?' In a statement last night, Secretary for Security Regina Ip Lau Suk-yee promised to convey the family's requests to mainland authorities.