Slater, lobbyist Carrick Graham and former National Party MP Katherine Rich lost a bid in the High Court last November to have hacked emails published in the book excluded from the defamation action brought by the academics, Doug Sellman, Boyd Swinburn and Shane Bradbrook.
That High Court ruling also required that Slater and Graham be "orally examined" before the trial, expected this year, because of inconsistencies in their written answers to questions posed by lawyers in the discovery phase of the trial, according to reports in the Herald at the time of the ruling.
The court action relates to blog postings between 2009 and 2017 and relate to alleged payments to Slater, via Graham, to advance the interests of Rich's employer, the New Zealand Food and Grocery Council, on a variety of food and beverage public health issues, such as obesity and alcohol harm.
The Whale Oil blog site has long been a clearing house for political rumour and allegations of scandal with a strongly right-wing bias. It has a 'take-no-prisoners' approach not only to the political left but also to elements of the National Party with whom Slater has been openly at war.
However, the blog's political influence appears to have waned since the Dirty Politics revelations diminished the site's attraction as a dumping ground for political smears.
- BusinessDesk