Pensieve-no spoiler just hypothetical ques.

[dally1025]

No: HPFGUIDX 62558

Reading most of the posts, I think most think that pensieve is an 
unbiased look at someone's memories.  I think this is the case, since 
Harry goes in as an unseen bystander instead of taking the memory's 
owner's place and seeing it through his/her  eyes.  Since I am 
assuming it is an unbiased opinion, why can't they take the pensieve 
out and show the truth in trials and such?  Wouldn't it have been 
much easier on everyone to show Harry's memories of the graveyard in 
GoF?  Does it take a complicated spell to take out your own 
memories?  Can other person take them out for you???  
Cera