After addressing Judge Elton Hoff over the course of four days since the start of last week, deputy prosecutor general Taswald July reached the end of the prosecution's closing arguments on Monday.
The defence team has now started to address Judge Hoff with their closing arguments, which are expected to be followed by an adjournment of the trial during which the judge would prepare his verdict.
The 65 accused still in the dock before Judge Hoff are facing 278 charges, including a count of high treason, nine charges of murder and 240 counts of attempted murder, in connection with an alleged plot between 1992 and 2002 to secede the former Caprivi region from Namibia.
July has argued that the accused became involved in a conspiracy to secede Caprivi - now the Zambezi region - from Namibia either as leaders, as supporters or recruiters of other people to that plan, or as attackers who struck at Katima Mulilo on 2 August 1999.
He argued that the evidence before the court showed that a former member party of the DTA, the United Democratic Party (UDP), changed from a legitimate political party to a criminal organisation when its leadership started to use the party as a vehicle for the pursuit of the secession of Caprivi from Namibia through the use of violence.
July argued that the national territory of Namibia consists of all of the territory recognised by the international community as comprising Namibia. That includes the region previously known as Caprivi, he argued.
The starting point when considering the crime of high treason was that Namibia is a sovereign state and that the 65 accused owe an allegiance to Namibia as a state, July said.
The evidence that the prosecution placed before the court over the past decade has proven that there was a conspiracy to secede Caprivi from Namibia, and that behind that conspiracy were people who were acting with a common purpose, he argued.
July asked Judge Hoff to find the overwhelming majority of the accused guilty of high treason and to also convict them on the nine counts of murder and on the 96 counts of attempted murder in respect of which the prosecution led evidence during the trial.
He argued that the acts of murder and attempted murder that the accused are alleged to have committed were not components of the offence of high treason, but were separate consequences of the attacks carried out at Katima Mulilo on 2 August 1999.
One of the accused who should be found guilty of high treason, murder and 96 counts of attempted murder is John Samboma, who is alleged to have been a leading figure in the separatist Caprivi Liberation Army (CLA), July argued. He recounted that the court heard evidence that Samboma had led a group of separatists that went to Angola to acquire weapons from the Angolan rebel movement Unita. Samboma was also in charge of secret training camps in Caprivi, and he gave the order that a deserter from one of the camps, Victor Falali, had to be tracked down, July argued.
Falali was shot dead in the Linyanti area - allegedly by former comrades in the CLA - near the end of October 1998, and Samboma then played a leading role in the decision that saw 92 alleged CLA members cross over the border into Botswana with weapons of war, he argued.
Former National Assembly member Geoffrey Mwilima also played a leading role in the alleged conspiracy to secede Caprivi, July argued. He said the evidence showed that Mwilima addressed meetings where the separation of the region from Namibia was advocated, and he was one of the persons who called people into action.
Mwilima has to take a lot of responsibility for the events of 2 August 1999, and he, too, should be found guilty of high treason, murder and attempted murder, July argued.
Although some of the other accused are at the other end of the scale of involvement in the alleged conspiracy, in that they only knew of the secessionist plot or plans to attack targets at Katima Mulilo and failed to inform the authorities about it, they, too, should be found guilty of high treason, murder and attempted murder, July argued.
Former school principal Gabriel Ntelamo and former Namibian Broadcasting Corporation employee Barnard Mucheka were among the few exceptions to the prosecution's argument.
July said Ntelamo and Mucheka could be convicted of sedition, instead of high treason, if the court found that their attendance at meetings where the secession of the region was a point of discussion did not qualify as proof that they had the required hostile intent against the State.
Judge Hoff should be guided by the facts, and the facts alone, when he considers his verdict, July urged repeatedly. On that point, the defence lawyers who have addressed the court so far have agreed with the prosecution. But on the question of what those facts are and how they should be interpreted the State and defence remain poles apart.