The issue of sex with one's dead wife - which came up last week in an Egyptian context - was originally discussed by Moroccan cleric Abd Al-Bari Al-Zamzami. Here he is giving an address on March 24, 2012:
A few days ago, I was asked by the Al-Sabbah newspaper about men who have sex with their dead wives. The truth is that this question took me by surprise, and I asked the journalist whether there really are people who do this deplorable and disgraceful act, which is not to be expected from a normal, balanced person. Only a mentally or psychologically unbalanced man would do such a thing.
In any case, I do not have the right to prohibit things. Fatwas are not shaped according to one's will or whim. Rather, they reflect the law of Allah... [Mick Hartley] Read more