some questions about transfiguration and wands

[theadimail]

No: HPFGUIDX 97325

Hi,
  I was reading Book 3 again last night and I was struck by something 
about Peter's transformation when he killed those 12 people. I was 
wondering what had happened to his wand? You require a wand to work 
out a curse and he transformed right afterwards. As a rat he couldn't 
carry his wand. So it must have been lying around. Just as his 
clothes were. But there is no mention of it. Shouldn't this have 
served as an anamalous indicator for those who were investigating hsi 
death?
  I haven't followed up with Book4 but how does he do magic there? I 
presume he uses Voldemrt's wand. That still means he doesn't have a 
wand. Maybe getting a real wand is a risky business in wizard world 
which wold result in detection. Is that the reason why he has been 
absent from Book5?
   This leads me to many questions:
1) We know from Hagrid's experience that whenever a wizard is 
sentenced to Azkaban his wand is broken. Then how come Sirius and all 
the other death eaters get their wands back? And if they can why 
couldn't Peter for a whole year from the time he escaped till the 
time Voldemort rises again?
2)And there is this about transfiguration. When you transfigure your 
clothes and other physical possessions just lie around. There are 
many suggestions about this. Which means you cannot carry your wand 
after you have transfigured. yet when Minerva Mcgonagall tranforms in 
Book 3 she is  holding her wand immediately after she transformed 
back into a human. And whenever  she transforms there is no 
suggestion that her clothes were lying around. Though this is the 
case in Peter's transformation because they found the clothes also. 
Why the inconsistencies?
3) Peter chipped off his toe before transforming in Book 3. I have 
many doubts regarding its timing and plausibility, but still as a rat 
his toe is missing. Suggesting that there is a correlation between 
human parts and animal parts when a wizard transforms into an animal. 
But many animals do not have organs that are found in humans and they 
have extra organs which are not found in humans. How do  people 
transforming into these animals manage with it?
4) Is a wizard's patronus same as the form he takes as an animagus?  
I know there is  no evidence for this question in the canon but still.

bye
adi