Dumbledore knew Sirius Black was innocent and had opportunity to intervene on two separate occasions, yet he did nothing and allowed Sirius to be imprisoned and executed. Sirius Black was wrongfully imprisoned as the man who had revealed James and Lily Potter's hiding place to Voldemort, when in reality it was Peter Petrigrew. Peter faked his own death to cast the blame on Sirius. Theoretically no one knew about this until over a decade later, when it was revealed that Peter was still alive. The only issue was this: Dumbledore was the one who cast the charm that made Peter Petrigrew the secret keeper, and therefore knew that Sirius Black was innocent from the very beginning. He did not intervene or speak up, but rather condemned Sirius and had him sent to Azkaban for twelve
Dumbledore knew Sirius Black was innocent and had opportunity to intervene on two separate occasions, yet he did nothing and allowed Sirius to be imprisoned and executed. Sirius Black was wrongfully imprisoned as the man who had revealed James and Lily Potter's hiding place to Voldemort, when in reality it was Peter Petrigrew. Peter faked his own death to cast the blame on Sirius. Theoretically no one knew about this until over a decade later, when it was revealed that Peter was still alive. The only issue was this: Dumbledore was the one who cast the charm that made Peter Petrigrew the secret keeper, and therefore knew that Sirius Black was innocent from the very beginning. He did not intervene or speak up, but rather condemned Sirius and had him sent to Azkaban for twelve