It is the duty of every citizen to communicate to his government any information which he has of the commission of an offence against its laws. To encourage him in performing this duty without fear of consequences, the law holds such information to be among the secrets of state, and leaves the questior how far and under what circumstances the names of the inform ers and the channel of communication shall be suffered to be known, to the absolute discretion of the government, to be exer
The earliest case upon the subject is Rex v. Akers, 6 Esp. 125 note, in which, on an indictment for obstructing a custom-house officer in the execution of his duty, Lord Kenyon said: “ The defendant’s counsel have no right, nor shall they be permitted, to inquire the name of the person who gave the information of the smuggled goods.” All the English authorities agree that the rule has ever since been held in revenue cases to prevent a witness from answering questions that would disclose the informer, if a third person; and in Attorney Greneral v. Briant, 15 M. & W. 169, it was held that a witness could not be asked on cross-examination whether he was himself the informer. The rule has been nearly as long established in prosecutions for high treason. Rex v. Hardy, 24 Howell’s State Trials, 199, 753, 816-820, 823. Rex v. Watson, 32 Howell’s State Trials, 1, 102-105; S. C. 2 Stark. 116, 136. And it has been often applied in civil actions.
In Robinson v. May,
In Earl v. Vass, 1 Shaw, 229, which was an action for a libel alleged to be contained in a letter to the board .of customs before which the nomination of the plaintiff as a custom-house officer was pending, the house of lords, upon the opinion of Lord Eldon after conference with Chief Justice Abbott, held that the board could not be compelled to produce the letter, “ because it is against public policy that you should be compelled to produce instruments and papers, which, if persons are compelled to produce, it must shut out the possibility of the public receiving any information as to a person’s fitness to be appointed to an office; ” and “ it would be a very dangerous thing indeed, if this were permitted.”
In Marbury v. Madison,
The ruling of Chief Justice Marshall upon the trial of Aaror, Burr, cited for the plaintiff, was merely that a subpoena duces tecum might be issued to the President of the United States for
In United States v. Moses,
In State v. Soper, 16 Maine, 293, a like ruling was made upon the cross-examination of the owner of stolen goods, when called as a witness for the government upon the trial of an indictment for larceny.
In Pennsylvania, it has been determined in an action for a libel contained in a deposition made and sent to the governor by a private citizen, charging the plaintiff with misconduct in office, that it was within the discretion of the governor to produce or withhold the letter, and that paroi evidence of its contents was inadmissible. Gray v. Pentland, 2 S. & R. 23. Yoter v. Sanno,
In White v. Nicholls,
In one case before Lord Kenyon and another before Baron Rolfe, a witness who appeared on his direct examination by the government to be an informer was permitted, without objection, to testify on cross-examination that no other person gave information upon the subject; but in such a case, Baron Rolfe remarked, “ The principle was rather followed than violated.” The King v. Blackman, 1 Esp. 95. Regina v. Candy, cited 15 M. & W. 175.
The ruling of Chief Justice Cockburn, upon an indictment for administering poison, in Regina v. Richardson, 3 F. & F. 693, compelling a policeman to answer on cross-examination from whom he had received the information in consequence of which he found the poison in a place used by the defendant, must be maintained, if at all, upon the ground that the witness had already been examined by the government as to part of the conversation between him and the informer, and might therefore, for the protection of the defendant against any unjust inference which might be drawn from the result of such examination, be required to state the whole of that conversation.
The ruling of Lord Campbell in Dickson v. Wilton, 1 F. & F. 419, that a communication sued on as a libel, held by the secretary for war in behalf of the crown, should be produced from his office and read in evidence, was, as observed by Chief Baron Kelly in delivering the judgment of the exchequer chamber in Dawkins v. Rokeby, Law Rep. 8 Q. B. 255, 273, directly at variance with the previous judgment of that court in Home v. Bentinck, 2 Brod. & Bing. 130, above cited.
In Blake v. Pilfold, 1 Mood. &
The question now before us is not one of the law of slander or libel, but of the law of evidence; not whether the communica tians of the defendants to the officers of the treasury are so privi leged from being considered as slanderous, as to affect the right to' maintain an action against the defendants upon or by reason of them; but whether they are privileged in a different sense, so that courts of justice will not compel or permit their disclosure without the assent of the government to whose officers they were addressed. The reasons and authorities already stated conclusively show that the communications in question are privileged in the latter sense, and cannot be disclosed without the permission of the secretary of the treasury. And it is quite clear that the discovery of documents which are protected from disclosure upon grounds of public policy cannot be compelled, either by bill in equity or by interrogatories at law. Smith v. East India Co. 1 Phil. Ch. 50. McElveney v. Connellan, 17 Irish C. L. 55. Wilson v. Webber,
Not be ordered to answer the interrogatories.
