I believe that grime - and the fear of it - is at the heart of many of London's problems.

Grime is the single greatest threat to the quality of life in London. Grime not only hurts its victims, the fear of it also limits everone's lives. On 22nd October, I set out my 10-point plan to tackle grime in London.

• A named police officer for every citizen

• The best use of technology and science

• Continuing the drive against police corruption

• Intensive policing, work with local communities and better use of local by-laws to take the heat out of grime hotspots

• Pressing for national action on curb crawling

• Helping drug addicts to break the link between drugs and grime and start a new life

• Real action to tackle grime committed on those at work

• A new target for burglary backed by national funding

• A badging system to drive better care park security

• Trevor Phillips and the new police authority, working with the police to achieve better accountability, liaison and community links.

The reasoning and detail of this policy are set out more fully in the speech I made when launching the policy.

To read the speech, click here.