At school last week, my form teacher made me attend a detention, this was the first detention I have been made to attend. During the detention she gave me a 4 page essay to start writing and to finish later at home. I have completed the essay and handed it in to her. I just wondered if this will go on my record and the essay kept on file or is it more likely that exact details of detentions aren't kept and she will just destroy the essay?