The trial could go differently if new evidence was introduced or if key witnesses changed their testimony.
Well, it might go differently if the magical laws were interpreted differently or if a powerful character intervened on the protagonist's behalf. Maybe a hidden power or charm could also influence the outcome.
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.
One way could be in a story where they are both prisoners in the same place. They are forced to interact and rely on each other to escape. Harry Potter might see a different side of Fenrir Greyback, a more human side that has been buried under his werewolf nature, and Greyback might see Harry not just as a target but as a fellow being in a difficult situation.
A lot of fanfictions play around with the Dursleys' relationship with Harry. They could be depicted as having a sort of begrudging respect for Harry. For instance, when Harry starts to show real courage and power, the Dursleys might start to see him in a new light. This is different from the original story where they mostly just try to suppress Harry. Also, some fanfictions might give the Dursleys magical abilities of their own, which completely changes their dynamic with Harry and the wizarding world.
In some fanfiction, inquistors are shown as more corrupt than in the original books. They might take bribes or abuse their power for personal gain. For instance, an inquistor could let a known dark wizard go free in exchange for a valuable magical artifact.
Well, in the 5th year trial fanfiction, Harry might face some unjust accusations. Maybe the Ministry of Magic is trying to pin something on him again, just like in the original story. He could be put on trial for using magic outside of school when he was actually defending himself.
In this fanfiction, a key witness might be Bellatrix Lestrange. If she were alive, she could be made to testify about the Malfoys' involvement with Voldemort. She was very close to the Dark Lord and knew a lot about the inner workings of the Death Eaters. Also, members of the Order of the Phoenix, like Remus Lupin or Kingsley Shacklebolt, could be witnesses. They were constantly fighting against the Death Eaters and would have knowledge of the Malfoys' actions. Additionally, some of the house - elves who served the Malfoys could be witnesses, as they would know a great deal about what went on in the Malfoy Manor.
It could be about a trial within the Harry Potter universe created by a fan. Maybe it's a trial of a character for a crime they're wrongly accused of, like Harry being put on trial for using magic outside of Hogwarts again. It might explore new aspects of the wizarding legal system and how characters deal with it.
Obviously, Harry Potter himself is a key player. He is the one on trial and has to defend himself. Hermione and Ron would also be important. They would be by Harry's side, helping him gather evidence and coming up with arguments to prove his innocence.
In some fanfictions, Avada Kedavra is used as a way to explore the darker side of characters. For example, a character who was previously seen as good might be forced to use it in self - defense, which then causes them to struggle with guilt. It can also be used to create alternate universes where the spell has different effects or consequences.