Meanwhile the final public meetings in the consultation process for the Mayor's policing plan take place tonight in Barking and Havering.
Have your say on London's Police and Crime Plan:
Boris wants to gather the views of people who live, travel and work in London, particularly those who have been affected by crime.
Your views will inform the final version and future revisions of the Police and Crime Plan.
Have your say by filling in the online form before 6 March.
More top news
With just three days to go until polling stations open, representatives from all parties were out in force across the capital today.
The garden above the Canary Wharf Crossrail station is now open to the public.
First time buyers in London now need an average annual income of £77,000 - nearly double the amount required in the rest of the country.