It's vital London remains a resilient city - Sophie Linden, deputy mayor for policing and crime

Sophie Linden, the new deputy mayor for policing and crime, was in discussion with Security and Resilience Network chairman, Sir David Veness, on London’s position in the world as a resilient city, the challenges and opportunities that Brexit is expected to bring, the challenges of managing the policing of the capital, including its preparation to meet a terrorist attack.