Sir Trevor will explore their landmark investigations and get unprecedented access behind the doors of Scotland Yard's most sacrosanct rooms.
He'll meet some of the people who have shaped the Met's history, including a former detective who went 15 months without a murder on his patch and then was faced with 15 in one day.
Looking back at some of the most notorious cases in its history, plus visiting The Crime Museum which documents all of the Met's work, this is a fascinating insight into the work they do.
Inside Scotland Yard With Trevor McDonald, ITV, 9pm
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