commission of the metropolitan police and after that the home secretary and the prime minister came to bishopsgaten where she met some of the city of london police officers who had been on duty yesterday and they also went into the control room and saw some of the work that the control room do to make sure that incidents like this, which we hope will never happen, are actually responded to professionally and properly. we traina professionally and properly. we train a lot to make sure that is the case and i think that happened yesterday and i'm very proud of the bravery of the police officers, the bravery of the police officers, the bravery of the members of the public and the fact that this operation was concluded as swiftly as possible. thank you. what lessons were learned from the terror attack in 2017 in terms of being prepared and being on the scene within minutes? we have taken the lessons from that time in 2017, we have always worked really well with the other emergency services and we do a significant regime of testing and exercising. we are continuing that, we've enhanced that, we've enhan