FOUR Customs officers who took part in a cross-border luxury-car smuggling syndicate received jail terms of between 18 months and six years in the District Court yesterday. The offences were part of an 18-month scheme from July 1991 to move vehicles over the Man Kam To and Lok Ma Chau control points. Senior Customs officer Tang Shu-wan, 33, was jailed for six years for conspiracy to export unmanifested cargo, and conspiracy to accept, and to offer, advantages. Since he is serving a five-year sentence for conspiracy to rob in a separate case, Deputy Judge Muttrie ordered that three years of that term run consecutively, totalling nine years. Customs officer Cheng Siu-keung, 32, was jailed for three years for conspiracy to export unmanifested cargo and conspiracy to offer advantages. As he is already serving a seven-year jail term for conspiracy to rob, five years of that were ordered to run consecutively, totalling eight years. Senior Customs officer Ng Cheuk-wing, 38, and Customs officer Woo Siu-man, 29, were jailed for 18 months each, after being found guilty of conspiracy to export unmanifested cargo, conspiracy to accept advantages and accepting advantages. All defendants had pleaded not guilty. Counsel John McLanachan said in mitigation that all had lost their good reputations and pensions. The court heard the syndicate was smashed by officers from the Independent Commission Against Corruption in February last year, when 20 luxury Toyota Lexus cars, worth $16 million, were recovered. Ng had been recruited by former Customs officer Ng Sheung-chun, 32, jailed for four years for smuggling and corruption offences. Senior Customs inspector, Li Chi-wah, 32, was sentenced to two years. Ringleader Cheung Sai-hung, 35, was jailed for four years.