Crime and Punishment, Law and Order

This is dealt with so well by at the Proceedings of the Old Bailey 1674-1913 site that it seems supererogatory to do anything more than point interested parties to the relevant sections under Historical Background: Crime, Justice and Punishment, which includes most relevantly:

• Policing in London: How suspects were apprehended
• Crimes tried at the Old Bailey
• Punishments imposed at the Old Bailey
  The Establishment of the Metropolitan Police, 1829 (‘Bobbies’ ‘peelers’)
  See also Police Offices and Police Courts

L.A. Hall, FRHistS