The ICAC has arrested another suspect in connection with an alleged horse-betting racket, bringing the number of arrests in Hong Kong to 17. The Independent Commission Against Corruption said the 53-year-old businessman was detained at the Lowu checkpoint as he returned from the mainland. The remaining 16 suspects - a retired police senior superintendent and his television actress wife, Yvonne Lam Yee-kei; a serving senior superintendent; a serving detective senior police constable; a former detective sergeant; two horse owners; a serving and a former bank employee; and seven others - were all released on bail last night. It is understood the Jockey Club is investigating whether race fixing is involved in the alleged racket. The club said the membership of the two horse owners caught up in the case could be terminated if they were convicted. 'The final decision is in the hands of the board of stewards. But according to our past practice, anyone with a criminal record will be removed from our membership list,' a spokesman said. Twelve suspects arrested in Macau were before a judge late last night. He was to decide whether to charge them.