To the arriving elf, Minerva stated, "Please go to Gryffindor Tower fifth year girls dormitory and pack all Ms. Granger's belongings. Then bring them here. Make sure you get everything that belongs to her and remove anything that doesn't. And check every piece of parchment using your magic to ensure it actually belongs to her. Place anything you find not belonging to her on my desk. I will handle returning it to it's proper owner at a later time. She will be leaving us tonight."
Severus had already turned to the fireplace and called the Ministry. He, too, knew the charter and knew Minerva had no choice in the matter now that she knew what had taken place. Ms. Granger had to be expelled. His plans for the remedial had only been in case Minerva forgot her duty to the school and allowed Albus to overrule her in the matter. Clearly, Minerva would do no such thing. So aurors needed to be called to escort Ms. Granger from the grounds as she certainly wouldn't go quietly. Plus, she was underage and thereby required an escort to make sure she arrived back in her parents care without undue harm to her person.
Albus had his wand in his hand and it was clear he was trying to stop things from going so far. But he couldn't. For some reason, even though Minerva was standing perfectly still his confundus spell kept missing it's mark. Nor could he hit Severus with a spell to stop him from calling the aurors to escort Ms. Granger from the Castle. He had no idea it was the school itself that was hindering his spellwork. Albus had long since forgotten Hogwarts, being imbued by the magic of the Founders and the bleed-off of thousands of students over the past millennium, was sentient in it's own way. Once the charter had been invoked, the school was able to defend it's administrators in the performing of their duty.
Minerva spoke to Hermione with heavy bitterness. "I'm severely disappointed in you, Ms. Granger. I thought you were an intelligent lass but clearly you aren't nearly as intelligent as you portray yourself to be. You may have read Hogwarts: A History but you clearly neglected to read the Hogwarts Rules and Regulations. Or at least, if you did read them, you didn't understand them. Either that or you, for some misbegotten reason, assumed those rules do not apply to you. As a result, you let someone convince you to destroy your own life. For money," she spat.
Hermione was in shock. She couldn't believe what she was hearing. She was expelled? From Hogwarts? Her life was destroyed! How could this happen? She turned towards the Headmaster. "Professor Dumbledore, tell her. Tell her she can't do this. You said this would never happen. That Harry wanted me to dumb down his work. That it wasn't cheating. That he gave permission for me to use his work as my own when I didn't have the time to do my own for dumbing down his." She began to panic. "This isn't right. She can't do this. I belong here. I've worked so hard to earn my way and get where I am. You said I was doing him a favor and he'd thank me for it later when he had time and space enough to understand. Tell her she can't do this." Her breath was coming hard and fast. Her voice was a thin whisper of sound as she hyperventilated.
Behind her a new voice entered the conversation. "She has no choice, Miss. It's in the charter and since you freely admitted what you've been doing in her hearing, she's contract bound to expel you. Just as she would've been had it been any other registered student. Indeed, I and my partner have also heard you admit you were falsely representing yourself using another students work as your own while altering their work so as to lower their marks. Now please turn over your wand. I'm afraid since you're still underage, I have to keep that as you have been expelled from this institution. I hope your parents selected a secondary institution for you to attend should your Hogwarts placement not work out when they registered you to attend Hogwarts."
"What? But… What am I supposed to do now?" She was on the point of breaking down and succumbing to a crying fit.
"I and my partner will escort you to the Ministry. Another team has already been sent to your home to bring your parents to the Ministry so they'll be with you during your questioning. We'll ask you some questions in the presence of your parents. If you did select another school on your registration form, it may be possible for you to transfer there immediately. If you didn't," he shrugged. "A decision will be made as to whether or not to snap your wand and bind your magic. It may be possible for you to hire a professional tutor to help you so you may take your Owls. Even if you didn't select a secondary school, there may be one with an opening willing to take you on as a student this late in the year. But depending on your answers to our questions, the Ministry may decide not to give you that option," said Kingsley speaking slowly and clearly.
"Now, Kingsley," interrupted Albus. "Surely this isn't necessary. It's all just a misunderstanding. Minerva over-reacted to what she heard and blew it up into something it isn't. Ms. Granger hasn't been cheating and the charter of the school doesn't apply. She was merely helping another student maintain the grade point average he wished to maintain. That's all."
"That isn't what we heard, Professor," said Kingsley serenely.
"No, I didn't," the woman in question declared hotly. "I wish I had. But I very clearly heard her admit she rewrote Mr. Potter's assignments behind his back and without his permission or knowledge with the clear intention of lowering his marks. Assignments which she went out of her way to switch for him without either his knowledge or permission. I also very clearly heard Severus say she then used Mr. Potter's stolen assignments as her own in the Potions classes she took with him. That not only caused her own marks to be elevated in the rankings and lowered Mr. Potter's standing even further but it skewed the entire year's results as well. What she did not only hurt Mr. Potter; it hurt every student in her year."