Musharraf validated his dictatorship and his high treason of 1999 by PCO. And subsequent PCO judges case nullified ANY and ALL court rulings during his tenure (dictatorship) that validated his actions.
The court chose the 2007 emergency, and I wish they had instead gone after the 1999 coup instead. Since the latter was clearly a more egregious case of high treason. But in both cases he removed judges and the constitution and had judges take oaths on him and not on the constitution.
Musharraf’s defence (current military leadership sponsored) tried to postpone the case. Tried to make the argument that ALL colluders in the unconstitutional actions, including Kiyani and senior judges should be tried too. They also for years made the argument that he cannot come back as he is ill, which is no doubt true. But the special court was told that they can continue the trial in absentia (without Musharraf present), which I think is fair given that it’s essentially an open and shut case for any judiciary in the world, there’s no doubt over his guilt, and they said that Musharraf and Musharraf only will be made the subject, not xyz persons, which is fair enough again.
If you want to debate technicalities of why he was tried over 2007 emergency vs 1999 coup, or make the argument that case was in absentia... these are technicalities that the defence will use to appeal after Khosa leaves. But, there is no doubt that Musharraf is a traitor, and that he did, multiple times and in multiple settings, commit high treason as defined in article 6.
There is no ambiguity on his guilt. He is guilty of high treason, one hundred percent.
Rest is just technicalities and army sponsored defence and pressure trying to save one of their own.