Quote from Turok:
Again, not defending these particular tactics, but I'm not convinced there is much of a parallel. It's a matter of practicality -- here, if you can get a solid legal reason to get in and do the tests(and I'm not sure they have one), with DNA you can easily determine scores or perhaps hundreds of child sex felonies with one fell swoop. The raid isn't even time sensitive -- last week or next week won't change the dna results.
In the case of the Catholic Church (of which I'm no defender) most of the accusations were well after the fact -- there weren't any accusers that claimed "they're in there RIGHT NOW molesting kids", and thus nothing to "raid".
JB