Cooley and the Telegraph

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Former Michigan Supreme Court Justice Thomas M. Cooley, in a forward-looking article, advocated for extending Fourth Amendment protections to telegrams in 1879. Cooley articulated a position that both foreshadowed 20th century arguments over telephone wiretaps, and reflected his late-19th century concerns.

Cooley’s Inviolability of Telegraphic Correspondence advocated for protecting correspondence sent via this relatively new technology from “unreasonable searches and seizures.” As support, Cooley turned first to the influential English case of Entick v. Carrington, in which English government agents entered a private domicile and seized private papers. Cooley writes:

The case [Entick], as will be seen, did not by any means turn wholly upon the breaking into the tenement and the forcing of locks, but it brought to the front as a principal grievance the injury the subject might sustain by the exposure of his private papers to the scrutiny and misconception of strangers.

The key for Cooley—unlike some other commentators—was the “exposure of ... private papers to the scrutiny and misconception of strangers.” For Cooley, telegrams are exactly the same as private papers, and should be available for use as evidence only in regards to the telegraph company (which has a “qualified property interest in them”), the sender, and the receiver. He analogized telegrams to postal mail, where “every invasion of it [the post] has been punishable” (though the Supreme Court only explicitly gave Fourth Amendment protection to postal mail the year before Cooley’s article, it did so based on a long-standing understanding that postal mail ought to be inviolable).

Telegraphic communications were protected to some degree by state law, but abo...

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...e correspondence is to be given to the public, the method is not important; it is equally injurious whether done by sending an officer to force locks and take it, or by compelling the person having the custody to produce it.

In short, argues Cooley, what is the difference between papers stored in the home and correspondence held at a telegraph office? This idea is not dissimilar to the majority opinion in Katz that the “Fourth Amendment protects people, not places.” In Cooley’s words, if a person’s correspondence is open to seizure in a telegraph office, then why should it be more protected in his home?

And if a search in a telegraph office and a seizure of a man's private correspondence is not an unreasonable search and seizure, on what reasons could the search for and exposure of his private journals be held to be an invasion of his constitutional right?

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