The Stately Progress of Maria de Menezes

is being duly recorded by the BBC.

And so far, amidst the de Menezes' family's aggressive calls for 'justice' and 'explanations', and descriptions of the kind of bespoke justice they believe is their due, nobody seems to have asked the questions to which I want an answer -

1. Did they know their relative was a criminal in this country?

2. If they did, why haven't they been questioned for conspiracy to break the UK's immigration laws?