Scott Watson will return to court this month to fight a move by Corrections to block a behind-bars meeting with an investigative journalist.
Watson is seeking a judicial review of a decision by the chief executive of Corrections to refuse him a meeting with North and South journalist Mike White.
The review will be heard in the High Court at Christchurch on May 20.
It is understood that Watson, convicted of murdering Ben Smart and Olivia Hope in 1998, wanted to discuss his case with Mr White.
In 2007, Mr White wrote a North and South article that raised "mounting doubts police got the right man".