In the 'Harry goes to Draco's trial fanfiction', Harry could be a key figure. He may have mixed feelings about Draco, but still decides to attend the trial. It could be that Harry has some inside knowledge about the events that led to Draco being on trial. He might use this knowledge to either defend Draco or to at least make sure the truth comes out. Maybe Harry has seen Draco's attempts to change or the difficult circumstances Draco was in, and he wants to share this with the court to influence the verdict.
Well, in this fanfiction, Harry might go to Draco's trial to offer some sort of testimony in his favor. Maybe he saw things during their time together at Hogwarts that could prove Draco wasn't as bad as he seemed. Or perhaps Harry just wants to see justice served in a more nuanced way, understanding that Draco was a product of his upbringing. It could also be that Harry has some new information about the events that led to Draco being on trial.
Harry's presence can have a big impact. His reputation as the hero who defeated Voldemort gives his words a lot of weight. If he speaks in Draco's favor, the jury or the judges might take his testimony seriously. Just his being there could also make the trial more publicized, drawing more attention to Draco's case.
Maybe Harry goes there to buy a special potion for his next adventure. He might be greeted with a cold stare from Draco at first, but then Draco realizes it's just business.
Harry could play the role of a defender. He might use his influence and the respect people have for him to support Draco during the trial.
One possibility is that Draco could try to change his family's fate. In the original story, his family was on the wrong side of the wizarding war. By going back in time, he might attempt to steer them towards a more positive path, perhaps by preventing them from getting involved with Voldemort in the first place.
In a Harry Potter Umbridge trial fanfiction, Umbridge could finally be held accountable for her cruel actions at Hogwarts. Maybe she'd be tried for her abuse of power, like using the blood - quill on students. The Wizengamot might hear testimonies from students like Harry, Hermione, and Neville about the unjust punishments and the way she ran the school tyrannically.
A 'Harry Potter Malfoys trial' fanfiction could have many twists. For example, the evidence against the Malfoys might be fabricated by some who want to take over their wealth and status. The Malfoys could then fight back, with Draco using his intelligence to prove their innocence. Hermione might be involved as a legal advisor of sorts, using her knowledge of wizarding law. And Harry could be conflicted, as he has his own history with the Malfoys but also believes in justice. The trial could also expose the dark underbelly of the wizarding legal system, with corruption and bias playing a role.
In this fanfiction, Harry might see a world where magic has evolved in ways he couldn't imagine. Maybe there are new spells and potions that are far more advanced. He could also encounter the future versions of his friends and enemies. For example, he might find out that Ron has become a very important figure in the wizarding world, or that Voldemort's influence still lingers in some unexpected ways.
Well, perhaps Harry would be amazed by the different teaching styles at Beubaxtons. He might make new friends and learn new magic that Hogwarts doesn't teach.
Well, maybe Harry discovers some magical secrets in Salum. He could meet new and interesting characters there.