See, I think we all get muddled up when we think other people will know what we are talking about, when we don't always! :)
Beachcomber, when you referred to clothing worn by Pakistani women, I thought Salwar Kameez because well, that seems to be the main type of clothing Pakistani women wear both here and in Pakistan. You were thinking of something more like a burkha though, which from what I understand, is worn only by a minority of women in Pakistan. I think both would see what they wear as in keeping with their faith. See how easy it is to get confused?
To sort of get back to the "honour killings" theme though, Beach, you suggested that one of the reasons a woman could be subject to an honour killing would be due to "immodest attire."
But, I keep coming back to the excuses men in Britain often give for attacking or killing their partners. There are often comments like that they dressed to slutty, flirted with other men, had affairs - a form of "immodest behaviour," so not miles from the rationalisation used for honour killings.
Often in reports where men have killed partners / ex-partners, there are suggestions (or direct statements) that the men felt humiliated by the woman. She laughed at him, she taunted him, she flirted or had an affair under his nose or behind his back, she didn't respect him, in short . . . she did something to dishonour him or in some way, violated perhaps an unspoken "code" of acceptable behaviour for women.