I for one was quite happy to believe the Duggan family's contention, and I don't see that this adds anything to it.
If anything it might allow the argument to be made that one dodgy individual was responsible, rather than them being decieved as a matter of Met police policy.
I'm not criticising you for posting the story, I'm questioning why the Standard have chosen to report it in the way they have, including the headline they've used, a big picture of Mark Duggan and the reminder that he was "responsible" for the Tottenham riots.