A defamation claim by former Conservative Party leader Colin Craig and Whale Oil blogger Cameron Slater won't be heard before a jury.
Mr Craig is suing Slater and co-publisher Social Media Consultants Ltd over 18 statements made on radio, television and on the blog about Mr Craig's relationship with his former press secretary Rachel MacGregor.
Ms MacGregor resigned shortly before the 2014 election and made complaints of sexual harassment against Mr Craig, leading to a settlement and his resignation as party leader.
Slater is counter-suing Mr Craig for two statements made in a press conference and booklet alleging he and the Whale Oil blog were involved in a campaign to force his resignation from the Conservative Party.
A jury had already been summoned for the trial, which is scheduled to begin on May 8, but Justice Christopher Toogood on Tuesday ordered the case be heard by a judge alone.
Slater had sought a jury hearing, while Mr Craig wanted judge-alone.
In his judgment, Justice Toogood said Mr Craig believed the question trail to assist the jury decide the issues could run as long as 100 pages and "the time, effort and expertise required to follow it should not reasonably be required of a jury".
But Slater's barrister Brian Henry said the case was not nearly as complex given the direction on legal matters was not controversial and the facts fell within a narrow compass.
Justice Toogood disagreed.
"Arising out of the allegations, 50 possibly defamatory meanings are asserted," he said.
"The factual background to each of the publications is extensive."
He said it would be unreasonable for a jury to work through the complex legal background of the case and ordered it be heard by a judge alone.
The trial is expected to take three weeks.