Nik you really are a bit of a numpty arent you? If the Muslim population in the UK views Sharia courts as having higher authority and validity than English courts - as many Muslims do, then a parallel legal system is inevitably going to exist. Disputes, divorces, and certain criminal acts will not present to the English judicial system. They will be dealt with and ruled upon by another legal system alien to this country. Maybe it's time you started to explain why you think these things are acceptable and lay out the benefits of mass immigration into Britain. A more positive way forward for you I think than your childish attempts to label people who object as racist and play "what are your sources " games to try to justify your arguments.