London mayor Sadiq Khan and police force agree target as part of major race action plan
Forces given powers to target pubs and restaurants if tables too close or larger groups mingling
UK’s second biggest city placed on government watch list while cases remain high across northern England
City sees ‘extremely concerning’ rise to 30 cases per 100,000 as positive tests in Britain hit highest level since mid-June
Clear disproportionality revealed in number of police arrests and fines in London