How does Snape know?

[colbernays]

No: HPFGUIDX 113785

potioncat wrote:
> In OoP Snape is starting Occlumency classes and comments that Harry 
> has some skill in resisting the Imperius Curse, comparing it to 
> resisting Legilimency.
> 
> How did Snape know Harry could resist Imperius?  If C!M was working 
> as Moody under DD's instructions, he could have reported it DD.  But 
> why would C!M tell DD?  And why didn't LV know that Harry could 
> resist it? Do you think Crouch!Moody forgot to tell him?  

It seems to be common knowledge what happened in Crouch!Moody's class
as even Umbridge appears to know:
In OotP 'Professor Umbridge'
'It is my understanding that my predeccessor not only performed
illegal curses in front of you, he actually performed them on you.'
Dolores said in their first DADA lesson.

It would seem, that however the info got out (as others have mentioned
the kids would talk about it a lot), LV was about the only one not in
the loop on Harry's abillities. It would appear Crouch and LV
didn't have much communication throughout GoF, which means they had a
very busy couple of weeks between the Quidditch Cup and the start of
school to plan everything.
 
Colin