[Miranda_]

"Hold on; I'd better check for a spell," Michelle whispered. She waved her wand and murmured a few words; the file glowed golden for a minute or two, then as Michelle said another spell, the glow faded.

"There," she said, satisfied. "There was a standard security spell on it; I've nulled it. The nulling won't last forever, but it'll last long enough for us to take it away and make a copy of it. You could go back to the Ministry and put the file back afterwards; I won't be able to, cuz my Polyjuice Potion would have worn off by then. You could do that quickly, while I deal with the people we're impersonating."