The Met Police Commissioner Bernard Hogan-Howe and the Mayor of London Boris Johnson are appearing next to seized and crushed cars in a graphic warning to rogue motorists, demonstrating what could happen to your vehicle if you drive illegally in the capital.
The event takes place on the same day the 14th day of action under Operation Cubo gets underway across London.
Hundreds of officers taking part in a coordinated series of operations targeting those drivers who are more likely to be involved in criminal activity, five times more likely to be involved in collisions and less likely to have their vehicles in a road worthy condition.
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Officers were given the touching letter at Brixton Station while they were on a reassurance patrol after yesterday's attack
The 52-year-old had previous convictions for violence but was not on the anti-terror watchlist.
In a statement Charlton Athletic said: Keith was a true hero who will be greatly missed by all the Charlton family and everyone at the club.