The Sixth Amendment follows the Fifth for good reason, because it helps to define the elements of “due process” that the Fifth Amendment called out. The Founders were very good about following a train of thought, for the most part. Again, this Amendment is pretty cut and dry on context, no real hurdles here. It further defines the process by which a Government may attempt to punish a Citizen that has committed a crime.
Here it is:
In all criminal prosecutions, the accused shall enjoy the right to a speedy and public trial, by an impartial jury of the State and district wherein the crime shall have been committed, which district shall have been previously ascertained by law, and to be informed of the nature and cause of the accusation; to be confronted with the witnesses against him; to have compulsory process for obtaining witnesses in his favor, and to have the Assistance of Counsel for his defence
First off, notice the spelling of the word ‘defence’, this is the British English variant of the word ‘defense’ as we know it today. Vernacular aside, this Amendment helps to tell the Government what their process will be and defends the People’s interests.
First part: In all criminal prosecutions
Defined is what the Amendment will cover, “criminal prosecutions”. To this point the Amendment assumes that the previous Amendments were followed and the Person was charged with a crime.
Second Part: the accused shall enjoy the right to a speedy and public trial
This is the basis of our Court system today. This Right guarantees that the People will be provided a quick and public trial. This was done intentionally as prior to 1776, Colonists could be detained without end and tried in a private proceeding, generally where most allegations were false and in the best interest of the Crown.
Third part: by an impartial jury of the State and district wherein the crime shall have been committed.
This portion specifically calls out “who” will weigh the truth of the allegations. The People. Specifically People from the area where the crime was committed and you’ll notice that this does not discuss race or gender (though, at the time those would hardly be sticking points). This is important because for most of the existence of America these juries were predominantly white men; this didn’t do to well when racism was prevalent through most of the United States. But, this is important today because you’ll see organizations like the ACLU or NAACP try to use race and gender as reason to “create” a jury, not of peers, but of specific races and genders – this flies directly in the face of this Amendment.
Fourth part: which district shall have been previously ascertained by law
This portion specifically defines that up to this point the “accused” must have been put in a time and space for committing the “crime”. This goes hand-in-hand with the Fifth Amendment calling out “double jeopardy”.
Fifth part: and to be informed of the nature and cause of the accusation;
The Founders wanted to make sure that the “accused” was well aware of what they were being charged with. The Amendment again was created to correct measures taken by the Crown where accusations could change at the whim of the Court, generally increasing rapidly. This also plays a later role in defining “Miranda Rights” for US Citizens.
Sixth part: to be confronted with the witnesses against him;
And this really sets in play that the Government must provide actual facts and actual witnesses to make their case. The Government must provide to the accused witnesses and evidence against them. The Government cannot hide evidence or claim witnesses it can’t produce.
Seventh part: to have compulsory process for obtaining witnesses in his favor
Right here the Founders said that a defendant might call their own witnesses. During the time of Americas founding it was common practice to put a defendant on trial with no ability to call anyone to testify in their defense (defence), this made it very easy for innocent people to become guilty, as the prosecuting agent was not about to call individuals that might say the defendant was innocent.
Eight part: and to have the Assistance of Counsel for his defence
Probably the most crucial element of this Amendment - the ability of the accused to have representation even if they couldn’t afford it. Now, in common day this seems like a given right? I mean who would dare think that you could arrest a poor person and then essentially destroy them financially by mounting a prosecution they couldn’t hope to defend against. This portion of the Amendment dictates and mandates that the People will be defended against the Government. It cites that the Government must provide a means by which a Person could be defended (clarified further by the 14th Amendment later).
So why does this matter and why should you care? Because again we can go to the “Grand Jury” as we see it applied today. During a Grand Jury preceding it is not necessary to produce a witness on behalf of the defendant, nor provide tangible evidence outside of conjecture. Think next time you rapidly move to say someone is guilty because of a Grand Jury indictment. Also, remember this when you hear about "Military Tribunals" and "drone attacks on 'terrorist' Americans", these fly directly in the face of the Sixth Amendment. Keep thinking people. Keep thinking.