The Hong Kong Jockey Club controls all betting in Hong Kong and in 2003 legalised football betting - as long as it was made through them alone.

Since the world cup has started, over 100 people have been arrested for illegal gambling with more than $US 6.4 million seized from over 50 operators. Macau has seen a similar number of illegal betting outlets - with over $US 12 million in betting slips being seized

Legal soccer gambling was introduced in this gambling-mad southern Chinese territory in 2003 in a bid to drive underground bookmakers out of business.
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But restrictions on the types of bets offered, coupled with the endemic nature of soccer betting here has meant the illicit trade continues to thrive

Article: Over 100 arrested in Hong Kong for World Cup gambling