Cadbury will sell a mountain of chocolates this Easter, as it does every Easter. It has been careful to make sure that its products are certified as halal, even though it is not necessary. Hundreds of companies in Australia do the same. Halal certification has become a big business.

The essence of halal is that any food is forbidden to Muslims if it includes blood, pork, alcohol, the flesh of carnivores or carrion, or comes from an animal which has not been slaughtered in the correct manner, which includes having its throat slit. Food labelled as halal invariably involves the payment of a fee. It does not extend to chocolate but Cadbury lists 71 products which are halal, ranging from Dairy Milk to Freddo frogs to Red Tulip chocolates. The website also states: ''We do not have any kosher-certified products.''

''Cadbury also pay for halal certification on the Easter product range, even though Easter is a Christian celebration and nothing to do with Islam,'' says Kirralie Smith, who runs a website called Halal Choices. The website lists 340 companies in Australia that pay for halal certification, including Coles, Woolworths, Aldi, Franklins, Kellogg's, MasterFoods, Nestle and even Kraft's Vegemite.

Halal Choices has received more than 250,000 visits since Smith, a Christian activist, created the website two years ago to draw attention to the incremental extension of sharia into Australian culture.

''[Cadbury has] a standard letter to people who complain about their halal certification which says they have been assured the Australian Federation of Islamic Councils [which issues halal certifications] are not involved in any illegal activity,'' Smith said. ''They might want to explain the $9 million in fraud involving the Malek Fahd school.''