Mr Aziz has also been involved with the East London Mosque; the London Muslim Centre; the Muslim Council of Britain; the Commission for Racial Equality; the Equal Opportunities Commission; the Forum Against Islamophobia and Racism; the European Network Against Racism; and the UK Race and Europe Network.
First, the advice Mr Aziz gives. The Daily Telegraph revealed this year that Mr Aziz had suggested that the new Government build closer ties with the controversial East London Mosque. He said that ministers should be willing to share a stage with groups that promote "a message of divisiveness, expressing intolerance towards other communities in the UK", and to treat privately with organisations that might support "violent extremism in Britain". Last night he apparently claimed that this was "completely untrue"
As so often, the more divisive and sectarian you are, the better chance of being heard by government. But the second problem – the lunatic punchline – is the premium we pay for this service.
Mr Aziz runs an organisation called Faithwise Ltd, the directors of which are himself and his wife. This summer, the Centre for Social Cohesion, of which I am the director, used the Freedom of Information Act to ask the Department for Communities and Local Government about its dealings with Mr Aziz over the previous year (though he had been its adviser since 2007).
What we turned up was extraordinary. Faithwise was retained to provide "strategic consultancy". Mr Aziz's organisation worked for 156 days for £113,394 – £725 a day, or at least £175,000 per annum, pro rata, rather more than the £142,500 the PM gets. Mr Aziz said his pay included VAT and operational costs.
While Mr Aziz has been contracted to central government, Faithwise has had significant "Prevent" funding from local government.
In recent years Camden council gave it £106,000 to set up a committee for a proposed new mosque. Just before Mr Aziz started working for the department, Faithwise and the Muslim Council of Britain won a contract from the Crown Prosecution Service to help its staff gain a detailed understanding of Muslim communities.
For Mr Aziz, then, the path of life seems to be strewn with £50 notes. But what did taxpayers get for that cash? It's hard to be sure. One of our Freedom of Information requests asked what performance metrics were put in place by the department to see that Mr Aziz did his work properly.
The reply showed that it either didn't understand the meaning of "performance metrics", or was unwilling to reveal what they were. Given the number of other roles Mr Aziz has to perform, one hopes they weren't too strenuous.
One final organisation that Aziz has had links with, the Islamic Forum of Europe, is dedicated to changing the "very infrastructure of society, its institutions, its culture, its political order and its creed… from ignorance to Islam".
The Government may never summon the courage to tell the Islamists where to go, although the department said yesterday that Mr Aziz's role was being reviewed. But it could at least ensure that money is spent more wisely than this.