After weeks of arguments and years of hearings, lawyers for Kim Dotcom are set to explain why the internet entrepreneur shouldn't be given up to US authorities.
Dotcom's lawyers have failed in their bid to have his extradition hearing halted and are now expected to begin their response to the US case on Monday.
In a ruling issued last week, Judge Nevin Dawson rejected applications to halt the hearing in which the United States are calling for Dotcom and his three co-accused to be sent to the US to faces numerous charges over their website Megaupload.
That means his legal team will now have to finally begin giving evidence as to why the tech mogul and his co-accused don't have a case to face in the United States.
Dotcom's lawyers had earlier argued the FBI had prevented them from putting up a proper case by keeping them from hiring US experts.
But they also wanted to argue the New Zealand government had acted unlawfully in aiding in Dotcom's arrest and had pushed for the extradition to gain favour with the US.
Justice Dawson said he would not halt the case to hear the remaining applications - although no reason for the decision has been given yet.
Dubbed the "Mega Conspiracy" by the FBI, US authorities allege Dotcom and his associates - Mathias Ortmann, Finn Batato and Bram van der Kolk - were involved in an organised criminal enterprise - centred on copyright violation through website Megaupload - which earned them US$175 million (NZ$258 million).
If extradited and found guilty in the US, the four men face charges that carry decades of jail time.