4.Veritaserum
See here, we have this potion, a very potent truth serum. Perhaps we could use it, I don’t know, to extract the truth from criminals? Maybe discover some of Voldemort’s plots and save few lives? Oh, there are rules and regulations regarding its use, you say? So, it is perfectly OK sending innocent people to Azkaban to be tormented for the rest of their lives or letting loose bunch of Dementors among children, but using a perfectly harmless truth serum if a big no-no? C’mon…
