Who then, is the JUDGE that provided 'instructions' to the 'AmericanGrandJury.com'???
Listed below is the Fifth Amendment.
I see nothing that says an Internet Website is considered for all practical and legal purposes to have the same weight and application as a court of law.
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No person shall be held to answer for a capital, or otherwise infamous crime, unless on a presentment or indictment of a Grand Jury, except in cases arising in the land or naval forces, or in the Militia, when in actual service in time of War or public danger; nor shall any person be subject for the same offence to be twice put in jeopardy of life or limb; nor shall be compelled in any criminal case to be a witness against himself, nor be deprived of life, liberty, or property, without due process of law; nor shall private property be taken for public use, without just compensation.