Exclusion for candidates and manipulation of questions raised by the public in such hustings constitute a very un-democratic practice. You can read the email received, sent by Daniel Webster, Parliamentary Officer of the Evangelical Alliance. If you wanted evidence, this is the evidence.
Dear Mr Cortiglia,
Thank you for your email regarding the mayoral hustings debate planned for 18th April.
We have decided to limit the debate to the parties which attracted the greatest level of support at the 2008 election, and have only invited the Conservative, Labour, Liberal Democrat and Green candidates to participate.
Mob: 07766 444650