Clearing Sirius's Name

[xp39c]

No: HPFGUIDX 41818

bboy_mn wrote:

> Then finally, if they capture Wormtail, you know he will crack like 
a
> cheap vase falling to a stone floor. If they capture him, that will
> certainly clear Sirius name. Also, the thought occurred to me that 
if
> Dumbledore could get one of the Wormtail rat hairs that are probably
> lurking all over the Weasley house, He may be able to use some kind 
of
> spell to show that this rat hair belong to a human. Never
> underestimate the power of magic.

How about polyjuice potion?  Would it work with the animal hair from 
an Animagus?  Would it turn the drinker into Pettigew or something 
like what happened to Hermione?

But then again, Mrs. Weasley probably keeps the Burrow clean enough 
so that there wouldn't be any hair from more than a year ago lying 
around in the house.