MoM monitoring of magic (was Chapter Discussions - Chapter Two Questions, "A Peck of Owls")

[Sue Wartell]

No: HPFGUIDX 72706

Wendy expressed concerns about the inconsistency of the MOM picking up 
on Harry's magic but missing out on all the stuff done by Harry's 
rescuers. (In a well reasoned post with no easy-to-snip points to 
respond to for the post I want to make...)

Me:
I have a hypothesis about why they (MoM monitors) did not detect the 
stuff done by Tonks and co. - the group put some sort of shield in place 
to block detection of the magic being done.  Therefore, they could do 
what they needed to to get Harry out without getting noticed by the MoM.

As to why MoM don't go after the Weasley kids (for example), I can think 
of 2 explanations - take your pick as neither is supported by text 
evidence.  1.  As mentioned before, there's so much magic going on in a 
wizarding household that they can't tell if the kids are doing things 
due to the general background noise.  2. Monitoring of the children of 
wizard parents is generally left to the parents; it is only those in 
muggle households who are monitored by the Ministry.  (Now that I think 
about it, both might be true.)

Sue