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Henry II issued the Constitutions of Claredon to try and limit church powers
1164
Richard I introduces coroners to investigate suspicious deaths
1194
Pope Innocent III ends Trial by Ordeal
1215
Bloody Code
1688-1820
Mounted patrols introduced to stop highway robbery
1815
Bow Street Runners Established by Henry Fielding
1748
BSR become government paid
1785
Metropolitan police established by Robert Peel
1829
Scottland Yard set up
1842
Police Act meant all counties must have a police force
1855
CID established- specialisation
1878
Fingerprinting first used in criminal trials
1902