Snape’s access to DD office? (was: Snape's part in death of Sirius )

[nkafkafi]

No: HPFGUIDX 108195

> Pippin:
> How can Snape do this? Isn't he shut out of Dumbledore's office 
along
> with everyone else?

Neri:
As another interesting subthread from the original discussion, I 
believe Snape did have access to DD's office when DD was not in 
Hogwarts. The reason is that in the first Occlumency lesson, Harry 
recognizes the Pensieve Snape uses as DD's Pensieve. The last (and 
memorable) Occlumency lesson is cosiderable time after DD left 
Hogwarts, and his office is said to be shut (Umbridge certainly 
doesn't manage to get in), but the Pensieve is still in Snape's 
possession. But in Ch. 37 when Harry is sent back to DD's office from 
the MoM, he sees the Pensieve in DD's office. How did it got there 
and what does this signifies?

Neri