Concert promoter MCD has claimed that gardaí are to blame for many of the problems at the Swedish House Mafia concert by failing to implement the law.
The promoter issued its own report today criticising policing at the Phoenix Park concert in July as inadequate and ineffective.
Seven people were stabbed at the concert and two men who had attended the concert later died of suspected drug overdoses.
The MCD report says it was gardaí who allowed public consumption of alcohol and drugs, and other anti-social behaviour to occur on streets around the Phoenix Park.
In a strongly-worded criticism it claimed gardaí had breached their duty of care to those attending the concert and the general public.
MCD added that their relaxed policing outside the concert venue contributed towards a serious lack of respect and disregard for security and gardaí by an element of the crowd.
The report specifically denies claims in a report from the Garda Commissioner that police officers were denied extra accommodation in the event control room or denied access to CCTV facilities.
It states there was no garda objection to the suitability of the site before the concert.
MCD also claims that gardaí had planned to increase the number of officers on duty by 54, but on the day actually reduced them by 61.
The report recommends that gardaí in future adopt a zero-tolerance policy at similar events, with high-visibility policing involving the public order unit, along with horse and dog units.
It said some criticism of MCD in the garda report was defamatory.
The garda report issued last month severely criticised MCD and identified what gardaí said were serious shortcomings in security.
Among the criticisms was a claim that the Phoenix Park was not a suitable venue for a dance music gig.
In response to MCD's report, the gardaí have said their position remains the same as set out in the Commissioner's letter to Minister for Justice Alan Shatter on 25 July.
A garda spokesperson said their priority was to do everything possible to ensure there was no repetition of the events seen at the Swedish House Mafia concert.