Daryl Tuffey and Mel Cairns will not face charges after being questioned in relation to the impending Chris Cairns perjury trial.
The former Black Caps allrounder was yesterday formally charged in London with perjury, relating to a libel trial he won against Dr Lalit Modi in 2012.
A statement from the Metropolitan Police mentioned no further action would be taken against "a 33-year-old woman and 36-year-old man" who had been interviewed as part of the investigation.
The Herald has been told the people in question were Cairns' wife, Mel, and Tuffey. Both gave evidence to the High Court during Cairns' successful libel trial.
Former New Zealand fast bowler Tuffey, along with Cairns and Lou Vincent, is being investigated by the International Cricket Council's anti-corruption unit, though that investigation has been put on ice while Met Police conduct their perjury investigation. Vincent has subsequently received multiple life bans by the England and Wales Cricket Board.