After the bombing, the NSW inquiry was never held, and the Commonwealth increased support for the anti-terrorism activities of the intelligence services.

[4] It has been asserted that there were a number of unusual circumstances, namely: Many of these issues were identified by Terry Griffiths, a former policeman who was seriously injured in the bombing, who had called for an inquiry.

[2] In 1995, Peter Collins, NSW Attorney General 1991–1992, said "The Hilton Bombing is a history of half truths, a litany of lies".

[4] In 1995, Barry Hall QC, counsel for Griffiths, argued that ASIO may well have planted the bomb in order to justify their existence.

[10] In 1998, Ben Hills wrote an article called "The Hilton Fiasco", published in the Sydney Morning Herald.

For the conspiracists to be correct, the following have to be lying in their statements: seven garbage men (including a street sweeper), an accountant, two hippies, a sign-writer, a father of two out for the day with his kids, an anarchist and the Hilton commissionaire.

Two members of the society — Ross Dunn and Paul Alister — were subsequently apprehended at Yagoona in Seary's company and charged with conspiracy to murder Robert Cameron.

Dunn and Alister stated that they intended only to write graffiti at Cameron's home and had no knowledge of the bomb, which they claimed had been brought by Seary.

Seary having already given discredited evidence accusing Dunn and Alister at the initial Hilton bombing inquest, was considered an unreliable witness in the written judgement of the High Court in Alister v R (1984):[15] ...Richard Seary, drug addict, informer and mentally disturbed fantasizer, must be one of the most unreliable persons ever presented as the principal prosecution witness on a charge of serious crime.

However, in Seary's record of interview following the arrest at Yagoona, in which he set out the events, he made no reference to the Hilton bombing.

If the admission had been made, Seary's failure to refer to it was extraordinary.However, there was also some police evidence, and the prosecution had strongly associated the matter with the Sydney Hilton bombing.

[4] Stipendiary Magistrate Walsh found a prima facie case of murder against two members of Ananda Marga—Ross Dunn and Paul Alister, but not Tim Anderson—based on evidence from Richard Seary, which was later discredited.

Alister ploughed his compensation money into land on Bridge Creek Road near Maleny, Queensland, which became his home, and the site of the Ananda Marga River School.

The Crown was permitted, in an unfair manner, to obscure a major difficulty concerning the reliability of the evidence of its principal witness ... by raising an hypothesis that was not reasonably open on the evidence ... a direction given by the learned trial judge to the jury relating to the "sanity" of Pederick ... constitutes an additional reason for treating the verdicts as unsafe and the process at the trial as unsatisfactory ...

The trial of the appellant miscarried principally because of an error which resulted in large part from the failure of the prosecuting authorities adequately to check aspects of the Jayewardene theory.

This was compounded by what I regard as an inappropriate and unfair attempt by the Crown to persuade the jury to draw inferences of fact, and accept argumentative suggestions, that were not properly open on the evidence.

[2] He found: "On any view of the matter, his account of the events of 12 February 1978, and in particular of the circumstances relating to his actual attempt at assassination, is clearly unreliable.

Pederick was released after serving eight years in jail and stated: "I guess I was quite unique in the prison system in that I had to keep proving my guilt, whereas everyone else said they were innocent.

The then-Premier of New South Wales, Morris Iemma, commended the City of Sydney Council for restoring the memorial plaque to its original home, and said he hoped there will never be a need for another.