So people often ask why Sirius Black wasn't just given Veritaserum and asked if he was guilty when he was arrested for the death of all those Muggles and accused of being a Death Eater who sold out Lily and James Potter.
Well.
Now we have an answer, thanks to the current Brilliant Event in Harry Potter: Wizards Unite.
Testimony obtained via Veritaserum is inadmissible in court!
