In Harry Potter and the Order of the Phoenix (book 5,) nobody believes that Harry is telling the truth about the death of Cedric Diggory.
However, on the other hand it's factual knowledge that in Goblet of Fire (book 4,) Barty Crouch Jr. impersonated Mad-Eye Moody and turned the Triwizard Cup into a Portkey. And it's common knowledge that Barty Crouch Jr. is a convicted Death Eater who was thought to have died in Azkaban years before.
Don't these idiots see that if Barty Crouch Jr. impersonated Mad-Eye and attacked Harry it must therefore mean that Harry is telling the truth?
However, then I realized, after coming to this realization, than many times in government people ignore the obvious facts. Logic is funny that way; it can be completely ignored.
(Incidentally, Barty is my favorite Lego Harry Potter Years 1-4 character to play because, unlike my third favorite [Sirius,] he can use Dark Magic. [-Second favorite being Lucius Malfoy who is fabulous and can also use Dark Magic.])
Okay, my next post might not be about Harry Potter. We'll just have to wait and see.