'No Justice, No Peace' read the placards at the spot where Mark Duggan was shot. For the first few weeks after the event there were masses of flowers and cards attached to the railings, and then that was all cleared away and nothing was left but bare railings. Recently, around the second anniversary, and with the subject still in the news, this little display sprang up. That phase comes from the LA riots in 1992, and it's found various uses since. Already, the flowers and placards are gone, leaving just the sticks sellotaped to the railings. Maybe it's best that the spot remains unmarked, although the shooting and subsequent riots will stick in the collective memory for a long time.