Hermione spent the upcoming two weeks leading up to Draco’s first set of trial obliviating witnesses of the mass murder he committed at Hogwarts when Snape and Moody were killed. Most of the people she paid visits were her ex-professors, just like Snape and Moody once were. She didn’t know exactly who else could’ve seen Draco murders, so she took the list she had written herself and visited every single member of the Order that was still alive, disguising her true intentions with a shawl of a friendly post-war visit. She knew everyone would find it suspicious if she came to talk to them just because, so she came up with a story that after the war ended her whole worldview has changed, so everything that happened after she moved in with Draco was just a misunderstanding. She felt no guilt obliviating Slughorn or Flitwick, but she did have doubts about using magic on Professor McGonagall who was always very kind to her; but the moment she started asking about Draco and "when is he going to get punished", Hermione realized she won’t be able to leave her be.