TJ – IIRC the inclusion of parts of Sharia law in the UK judicial system came up as recently as last Feb.
Paraphrasing a few archived pages from the BBC website, it was postulated that as the prevalence of Muslim communities practising and abiding by Sharia law in their own community grows, to the exclusion of the UK judicial system, it would be better to include some of it within UK law. The aforementioned 'weirdy beirdy one' (Rowan Williams) chipped in that this was an afront to the majorities common national values (whatever they are)and in doing so not only opened the can of worms, but proceeded to drop kick it in an effort that one J Wilkonson would be proud of. Being clearly a political hot potato, the government had no real answer/was not prepared to make comment so the whole thing died on it's ar$e.
Therefore, there is evidence that the issue it out there, it's just resting for a while before the tabloids pick it up again.