This seems to be a very pragmatic solution. No hoarding of items by the character (or anybody else).
This way, an item (focus or enchanted) simply becomes an object in the hands of those who have retrieved them - some kind of souvenir 
Then, how about "recharging" such an object? The new owner could give the object one of his slots, invest the time (like with a new item) and can use it. The GM could rule that recharging of such an ex-item would oly work if the old powers are replicated exactly, thus giving the characters something to research. And the recharged item could still hold the imprint of the old owner, thus giving GM and players lots of oppurtunities to compels and great roleplaying.

To wrap up someone a werespider should have caught him in a web like normal spiders do. So first I would give the spider the ability to build a web. Have to look at the rules how to do that...

Ive read in the rulebook that the 6 Laws of the White Council is about the spirit of these laws...

I don's see the benefit of it, but if one of my players want to do it that way, why not...? He would probably spend the points anyway halfway to the next milestone...

I am not a rule expert, but in my opinion it is much more difficult to cast such e spell. Not only do you have to build 5 moving veils, but they at least have to look like exact replicas of the original, they have to behave and shoot like him. If they can be identified to easily as illusions, then opponents can ignore them totally and concentrate on the real target.
So, I don't see this happening as an evocation...

I like your comments, Redthorn and Farbot...

by the way: I didn't start this thread because I want my players to be able to mindread and by no means I wanted to discuss if it is dangerous - it is! But I think every rule has his exceptions, even for the White Council and volunteering along with a very good cause could be one in my opinion. That doesn't make it any easier or less dangerous. I do, however, think that such a good and plausible cause would result in getting the character no Lawbreaker power. At least, if the results are not too much devastating...

I thought of leylines, too. Also of a BIG cavern system where the bahkauv could dwell (and many other creatures, too). What to make exactly (rulewise) with the different creatures I have to decide when I have finished both books (YS and OW). But I would gratefully take any advice I could get, especially if someone has visited Aachen...