Last year, Australia approved similar laws to those proposed by Health Secretary Andrew Lansley, introducing plain packaging to reduce the attractions of smoking. Three global tobacco giants launched lawsuits saying the rules infringed trademark rights.
Three of the world's four largest tobacco groups, Philip Morris International, British American Tobacco and Imperial Tobacco are challenging the new law in the High Court.
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Another hot day on Wednesday.
A nine-year-old child who had the world's first double-hand transplant has celebrated a year since surgery.
Corbyn's opponents present the Virgin Trains saga as a question of integrity but supporters will see him taking on a corporate giant.