The London Assembly Police and Crime Committee will question the Metropolitan Police Commissioner Sir Bernard Hogan-Howe on the work of the Metropolitan police later today.
Deputy Commissioner Craig Mackey and Deputy Mayor for Policing and Crime Stephen Greenhalgh will also appear.
Crime statistics and student protests are just two of the subjects to be discussed at the meeting.
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The high of 35C was recorded on a Bakerloo line train between Piccadilly Circus and Oxford Circus at 2pm.
Weather forecasters say temperatures could reach 35C, beating the previous record of 34.6C in the scorching summer of 1976.
After years of political manoeuvring over the future expansion of Heathrow Airport, there has been an important development this lunchtime.