Breivik's Nationalist Salute
Breivik's Nationalist Salute Reuters

Norwegian mass murderer Anders Behring Breivik on Wednesday refused to answer prosecutors' questions an anti-Muslim terrorist group he claims to belong to.

Breivik, who is on trial for the massacre of 77 people on 22 July 2011, has long claimed he is a part of a militant anti-Muslim group called the "Knights Templar."

Prosecutors have said they believe Breivik's so-called "Knights Templar" group does not exist "in the way he describes it."

Breivik, who became agitated when pressed for information on the alleged group, saying police just "had not done a good enough job" in uncovering it.

"It is not in my interest to shed light on details that could lead to arrests," he said.

Breivik also refused to give details on what he claims was the founding session of the "Knights Templar" in London in 2002. 

However, he conceded that he embellished in his manifesto when he described the other three members at the founding session as "brilliant political and military tacticians of Europe".

Breivik admitted he had used "pompous" language and described them instead as "four people with great integrity."

Prosecutor Bejer Engh challenged him on whether the meeting had taken place at all.

"Yes, there was a meeting in London," Breivik insisted.

"It's not something you have made up?" Engh pressed.

"I haven't made up anything. What is in the compendium is correct," he said. "There is nothing that is made up, but you have to see what is written in a context."

"It is a glorification of certain ideals," Breivik argued.

Breivik claims to have carried out the attacks on behalf of the Knights Templar, which describes in his 1,500-page manifesto as a "militant nationalist group fighting a Muslim colonization of Europe."

"What is it you're getting at?" Breivik asked Engh at one point in a clear state of pique before charging that prosecutors want to "sow doubt over whether the KT network exists."

The issue is of key importance in determining Breivik's sanity. If found insane, Breivik faces incarceration for compulsory psychiatric care.

More importantly to Breivik, his political views would be dismissed as the ravings of a madman should he be found insane. 

One psychiatric evaluation found him psychotic and "delusional", while another found him mentally competent to be sent to prison.

If found sane, Breivik could face a maximum 21-year prison sentence or an alternate custody arrangement that would keep him locked up as long as he is considered a menace to society.