I didn't want to comment on Keith's link before I had a chance to read it properly - I suggest he does.
They are somewhat random selections from an obviously long and complex thesis, some of which suggests that Pakistani culture may, in part, have some influence on the behaviour of the handful of criminals apprehended and tried so far.
The author nowhere assets that this culture has influenced or infected even the cultural adherents, let alone those who have absorbed much of the culture of the country they have chosen to live in.
We have no idea of what he bases his opinions (that's all they are), nor do we know what conclusion he has reached about the fact that that same culture forbids sex outside marriage and drinking alcohol, both of which are major aspects of the criminal abuse in question.
I certainly am not in the position to dispute any learned theses, but none of us are in the position to use carefully extracted snippets in pursuit of a well established agenda.      
I meant to add to my comments about Jack Straw's statement on under-age sex, that it was his conclusions, along with those of the Scottish and Northern England police and judiciary that Keith carefully omitted from the original cutting he cut-'n-pasted - agenda driven or what!!!!
Jim Carroll