Gerard Hutch said gardaí did not know who the six men were who were involved in the murder of David Byrne at the Regency Hotel in Dublin over six-and-a-half years ago.
The 59-year-old who denies a charge of murder was recorded in conversation with former Sinn Féin councillor Jonathan Dowdall who drove him to Northern Ireland a month after the murder.
Gardaí bugged the SUV and the recordings were played at the Special Criminal Court today.
The court also heard Mr Hutch say that Daniel Kinahan, the controller of the Kinahan Organised Crime Group, looked "in a heap" after the murder.
Gardaí placed a tracker device and listening devices on Jonathan Dowdall's Toyota Landcruiser when he drove Mr Hutch into Northern Ireland on 7 March 2016, a month after the murder at the Regency Hotel.
Kinahan gangster David Byrne was shot dead on 5 February 2016, in a murder that escalated the ongoing Hutch-Kinahan feud.
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Recordings of the conversation between Mr Hutch and the former Sinn Féin councillor were played in the Special Criminal Court this morning and included references to Sinn Féin, explosives, the IRA, old provos, the murder of David Byrne, the garda investigation and what to say to detectives when they come to speak to you.
In relation to the murder at the Regency Hotel, Mr Hutch says he did not think the gardaí knew who was involved and dismissed reports in the paper as "speculation."
"I don’t think the police know who the six are," Mr Hutch is heard to say because "the six people don’t know who the six are."
Mr Hutch then says they definitely know the man and the woman.
Photos from the day show a man dressed as a woman and the late dissident republican, Kevin Murray, both carrying guns.
Mr Hutch also refers to the Kinahans and in particular Daniel Kinahan being under pressure following the murder, saying Daniel "looks in a f***ing heap from photographs".
He also says the "English" have been all over them for a long time, while Jonathan Dowdall responds that "they had bouncing between countries" and "not fixed anywhere"; "if you could buy time," these are finished.
Mr Hutch denies the murder of David Byrne during a boxing weigh-in at the Regency Hotel in Dublin on 5 February 2016.