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Don't waste your time trying to bribe kiwi Customs or Police officials, is the message that comes out of a survey released today.

New Zealand is the "least corrupt country in the world", according to the survey's findings.

The 2009 Corruption Perceptions Index places New Zealand on top, followed by Denmark and Singapore.

At the other end of the scale is Afghanistan and Somalia.

The survey is carried out by the Transparency International organisation.