London Mayor Boris Johnson said he was frustrated that the "plebgate" row has continued for so long and wishes it was "knocked on the head".
Mr Johnson said: "It's got to be done, we need to get to the truth of what happened in so far as it could possibly be established for everybody's sake and it is extremely frustrating that it is taking so long.
"But the mills of justice grind slowly but they grind small, we will get the answer and that is the best we can do but we have to follow the correct procedures."
It's turning out to be a big week in the life of the story we call "plebgate".
West Mercia Police have confirmed they are reviewing a report on the 'Plebgate' scandal which is alleged to have been fundamentally altered.
Claims have emerged police officers changed the conclusions of a probe into a meeting between Andrew Mitchell and federation members.