"Major miscarriages of justice have occurred because of the absence of proper legal representation." — Sadiq Khan

London's greatest strength is our diversity, and it's wonderful to see Londoners celebrating our capital's different traditions, determined to stand up to division.

We should recognise the mirrors of exclusion and mirrors of extremism in our society. The inequalities and disadvantages among visible minorities are also prevalent in the white working class. Political extremism and disengagement is mirrored between white and ethnic minority communities.

Probation is a less-well-known branch of our justice system, compared with, say, police and prisons, but that doesn't make it any less important. Hundreds of thousands of offenders each year are rehabilitated back into society by probation, which is crucial for the public's safety.

Legal aid is central to righting wrongs and rectifying injustice.