Police investigation

Definition and stakes

George Dilnot,  Scotland Yard: The methods and organisation of the Metropolitan Police

“ Through a little back door, up a stone flight of stairs, into a broad corridor one passes to the offices where are quartered the heads of the most important branch of Scotland Yard—the Criminal Investigation Department, with its wide-reaching organisation stretching beyond the confines of London over the whole world.
It is its business to keep its fingers on the pulse of crime, to watch vigilantly the comings and goings of thousands of men and women, and to bring to justice all those whose acts have made them a menace to society.
”
Source: Gutenberg

Culombe v. Connecticut — Opinion of the Court

“ While encouraging police officers to put questions to all possibly informed persons, whether or not suspected, during the early phase of their investigation which aims at discovering who committed the offense, the Rules admonish that so soon as the officers make up their minds to charge a particular person with a crime, they should caution him, first, that he need say nothing and, second, that what he says may be used in evidence, before questioning him or questioning him further. ”
Source: Wikisource

James H. Collins,  The Great Taxicab Robbery: A True Detective Story

“ Inquire at all garages, automobile stands, stables, etc.
If found, notify Detective Bureau.
Before noon, the Commissioner has postponed appointments, assigned routine business, and is engaged in an investigation that will keep him busy until that morning, twelve days later, when the first arrests are made, and the case is, in police parlance, “broken.”
Where do the police begin in such a crime? What do they start with when there is apparently so little to work upon?
In spite of the wide popular interest in police and criminal matters, the average citizen has no very clear idea.
”
Source: Gutenberg

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