He puts both of them in detention.

"Both of you, Alice and Kelly, detention after school!", the principal yelled at both of them in a serious tone.

"But..but...but...why ?", Kelly asked as she struggled to say.

"Because you stole her uniform and refused to give it to her back, that's why", he explained.

"But why i am in detention, then?", Alice asked confused.

"Because you streaked through the whole school when you could just ask a fellow classmate for a replacement or to inform the teacher, and also for starting a fight", he explained to her.

"But i was only trying to defend myself, that's not fair!", she replied upset.

"Sorry, but that's the zero tolerance policy for you", he simply said.

"Whatever...just...whatever", was the only thing Alice could respond, "Either way, could you at least give me my uniform back", she asked Kelly.

"Well... the thing is that...let's just say that i threw it over a window when you were chasing me", she admited nervous.

"YOU WHAT!!?", yelled Alice, upon which, both of them began fighting again.

"THAT'S IT, DETENTION FOR BOTH OF YOU, NOW!!", the principal yelled again, upon which, once again, Alice and Kelly stopped fighting again.

"Yeah...yeah... i get it, but at the very least could you give me something to wear at least?", she asked.

"Sorry to inform you of this, but right now , we're out of spare uniforms, so you'll just have to stay like you're right now, for now", the principal explained. "Either way, both of you should go over to the teacher's room right now!", he ordered.