Charles Edward Williams Reith (27 November 1886 - 7 February 1957) was a Scottish police historian, best known for distilling the thought of Robert Peel into nine principles in his 1948 book A short history of the British police. [1] He worked in Sri Lanka as a tea- and rubber- planter, where he joined the Ceylon Planters Rifle Corps and on its disbandment rose to Captain in the Indian Army Reserve of Officers. [2]