www.independent.co.uk/news/uk/home-news/islamic-law-to-be-enshrined-in-british-law-as-solicitors-get-guidelines-on-sharia-compliant-wills-9210682.html
Must admit I have only been asked on 2 occasions in many years of will-writing to make Sharia compliant wills, and both times advised that they would not stand up in court and so in one case the client went elsewhere, in the other he agreed to divide his estate equally between his sons and daughters when I explained the risk of litigation.
I am saddened if this is now going to change.