Well, I don't know how to put this. I'm deeply bored, and parents are going to be home soon with a puppy only they want, so I'm thinking.
And my thought basically is this.
What we know about the Federation's governmental structure from canon is a jumbled, confused mess.
I disagreed with T'Girl positing Starfleet as a fourth branch of government when she mentioned it in the thread on this forum postulating a possible structure for Starfleet Command/levels above the individual starship, but I could see where it comes from: The disturbing lack of mention generally given to non-Starfleet organizations throughout the TV series and the movies.
This thread aims to fix that - to posit and debate what the Federation government might look like.
---
For the record, some starting points:
Because if you try to figure out things in the time of TOS it gets confusing at best and downright insane at worst (partly because the Federation wasn't even invented until during the series run), I mean to look at the government as it might exist in 2383; hence, the TNG/DS9/VOY era.
I'm going to call the novels "helpful but not authoritative", because I haven't really read the novels.
My sources of inspiration here will be, in no order, canon such as it exists and is not contradicted (which, sadly, eliminates much of it), RL political science and other social sciences (more than RL governments or polities themselves), plus a good deal of speculation.
I will admit here that my knowledge of canon is not encyclopedic.
---
Starting assumptions about the universe:
1. Humans and the Federation have economies, use money, and so forth. This is a hotly-debated point in Trek canon, but numerous governmental systems would not work at all if money did not exist and was not important. Over in the Trek Lit forum, me and Myasisichev (apologies if I misspelled that) brought up contracts law and torts law - and Myasisichev put in absolutely hilarious terms what a lack of monetary remedies would do to products liability law. The point is that without money, bad things happen.
2. Earth is a paradise, sort of. As are Vulcan, Andor, Tellar, and similar "inner core" systems, sort of. How this occurs will be analyzed, briefly. Note the specificity and qualifiers. These matter.
Finally: Occasionally, I will put things in []'s (brackets). These are "Margin notes" - not part of the document as such, but intended to be explanations, clarifications, and commentary.
---
So, starting from the top. That is, the foundational documents of the UFP.
First off, what are they?
The Articles of Federation go by a variety of names. However, this is the fundamental treaty, the accession to which officially makes a Member State a part of the Federation. Yes, you read that right - it's legally a treaty. There are states, as subjects of interstellar law (such as it is) beneath the Federation.
The Articles set out the fundamental aims of the Federation, and establish a temporary structure "until the Member States may decide to institute between them further instruments".
The Federation Constitution is one of those further instruments - adopted by each Member State upon entry to the Federation, it is entrenched law that sets out the fundamental governing structure of the UFP. It is, in other words, strictly a "structural" document; rights and the like are not generally mentioned.
The Federation Charter of Rights actually handles the "Bill of Rights" functions seen in some constitutions. It's a separate document from the Constitution, but is entrenched to the same degree.
[Constitution/Charter difference is in part one of in-universe practicality - the initial drafts of the Constitution alone, if RL documents are any indication, probably weighed in at the dozens if not hundreds of printed pages. Debating, let alone understanding, would be greatly impeded if you combined the Constitution and Charter. Partly it's to avoid the problem constitutions which combine the roles frequently have in real life - where they might gradually accrete hordes of amendments. -Penta]
All officers of the United Federation of Planets, civil and military alike, swear or affirm to support the Constitution and the Charter.
[That little paragraph is vital. It shows where loyalty lays: Not to the government of the day, but to the institutions established by the document.]
---
The Articles of Federation are mostly a historical document by 2383 - In daily life, they've long since been superseded by the Constitution and the Charter in importance.
It's important to stop for a minute and note why the structure was designed as it was, with a fairly makeshift government under the Articles replaced by the Constitution and the Charter within a year: The Articles were an exercise in "getting something built for now", with the idea all along of replacing it later. It was negotiated and acceded to by the initial members during the Earth-Romulan War, and nobody was quite sure it'd survive. Either the Romulans would win, or the infant Federation would tear itself apart; either was figured to be much more likely than actually pulling through to the call of the Convention of States which birthed the Federation Constitution.
As it is, they never managed to agree on abrogating the Articles, and so new members still accede to the Articles, then the Constitution and the Charter. By 2383, you probably could come up with reasons to formally consign the Articles to history, but nobody really wants to expend the legal and diplomatic energy that would require.
[Made sense to me, anyway. After 200+ years of the current system, it'd probably take years (and open up numerous cans of worms) to formally abrogate the Articles to history.]
---
The Constitution of the UFP, written in its first drafts in 2161 during the closing stages of the Romulan War, takes its cues in many regards from Terran constitutional and political theory. This is largely intentional - there was no way you could get the Andorians to agree to Vulcan forms of government or the reverse. The Tellarites argued everything. It helped that Earth had by far the most diversity of active cultures among the founding species, and the government of United Earth was a working exercise in making cross-cultural government effective. It might also be mentioned that governmental and constitutional change was happening most rapidly for Earth and its colonies - Vulcan, Andor, and Tellar had had centuries with their current systems in broad form, while Earth had gone from nation-states to a single world government to, now, a multi-species government in only a few generations. To be wholly frank, the ever-pargmatic politicians who negotiated the Constitution knew that if it was to be accepted by humans, they couldn't change things too much. Especially since a law had been passed in the UE parliament requiring the approval of the Federation Constitution by popular referendum - something regarded with intense nervousness by everybody else, even the Tellarites.
[I never liked the idea that change could happen as fast, and as dramatically, as posited in Trek without what would really happen in politics: A not-insignificant population getting suspicious of the deals being worked out behind closed doors, the third massive change to Earth's politics in only a few generations, demanding things slow down, at least. See the Lisbon Treaty in RL Europe for a good example.]
In the event, it was approved by a resounding majority, but still. The law remains on the books, meaning that Earth and its colonies go to the polls whenever it's proposed to amend the Federation Constitution.
[Because power is an aphrodisiac, I don't see Earth and its colonies giving that up any time soon.]
---
Structurally, the government of the Federation is based, with some adaptations for scale and cross-species issues, upon the government of United Earth.
There are three branches, as learned by every Federation child in grade school social studies, inspired by Anglo-American consitutional theory: The executive, the legislative, and the judicial.
The judicial branch is headed by a (currently) 9-member Supreme Court, formally known as the Supreme Court of the United Federation of Planets. Sitting in Paris, this is the last stop for any case in the Federation - there are no appeals of its decisions. As a rule, the size of the court may change as decided by the legislative branch - however, the constitution stipulates that there must be an odd number of seats upon the court. Members of the court (collectively known as "The honorable, the Chief Justice and Associate Justices of the United Federation of Planets", and individually as "<gender title> Chief Justice" and "<gender title> Justice", such as "Mr. Chief Justice" or "Mr. Justice" for human males) serve for life on condition "of good behavior". The Court generally deals only in major issues - on an average year, it only takes (formally, grants certiorari to) 80 to 100 cases. While the death penalty has not been imposed in Federation civilian jurisprudence since the 23rd century, and in Federation military jurisprudence since the early 24th century, it still remains on the books for very limited offenses under the Uniform Code of Military Justice which governs Starfleet - in such cases, all death sentences must be explicitly confirmed by the Federation Supreme Court after oral arguments. It was formerly the practice of the Justices, when announcing their decisions in capital cases, to wear scarlet robes, as opposed to their ordinary black robes.
[The number of cases is taken from RL US Supreme Court caseloads. The robes thing is a touch I recall from somewhere that seemed fitting to the solemnity and "difference" of a capital case.]
Below the Supreme Court, the Constitution does not speak to the Court System, except in prescribing life tenure for Federation judges - however, the Judiciary Act 2163 was one of the first laws passed by the newly-assembled legislative branch, and it quickly established a series of judicial circuits, headed in each case by a Justice of the Supreme Court assigned by the Chief Justice (who, besides his duties managing the Supreme Court, also is President of what is known as the "Judicial Conference of the United Federation of Planets" or Federation Judicial Conference, a body which handles much of the administration of the court system), and staffed also by circuit judges. Generally, the number of circuits has always at least matched the number of associate justices on the Supreme Court, plus the Chief Justice acting as chief circuit judge of the special "Federation Circuit", which handles appeals from lower courts in civil cases involving the Federation government. Circuits are, other than the Federation Circuit, arranged on "geographic" lines. Despite the name, members of the circuit courts have not "ridden circuit" for over a century in most circuits, instead sitting in a permanent location. The exception comes on the frontiers, where it's a rare planet which could permanently support a circuit court's infrastructure burdens. In such cases, the circuit judges travel in starships flown by the Federation Marshals Service, and convene aboard ship or, where possible, on planets for a brief period. Circuit courts generally hear cases in panels of 3 judges, except when appeal is made to the court from the panel, in which case it is heard "en banc" - with the entire court hearing arguments. This is rarely granted, however.
[The Federation Judicial Conference is based upon the Judicial Conference of the United States - such a body seems almost required given the size of the UFP. The circuit courts are based off US practice - except that in the US, circuit courts haven't been mobile for over a century.]
Below the circuit courts are Federation District Courts and Federation Magistrates' Courts. District Courts cover multiple star systems in most instances, and sit as the court of First Instance in most cases brought under Federation law, as opposed to the law of a Member State. (A vast majority of matters, civil and criminal alike, are handled by the court systems of Member States of the UFP, with no involvement from the wider Federation. Appeals from Member State supreme judicial bodies go the local Federation District Court, and up from there.) Judges on Federation Disticr Courts serve for life, and generally sit alone, not in panels as at the appellate levels. However, there are usually multiple district judges per district, headed up by a Chief District Judge. Federation Grand Juries are also empanelled at the District Court level. Each Member State is guaranteed at least one judicial district by common practice - Earth, Vulcan, and other heavily-populated regions often have multiple judicial districts, particularly where a large number of colonies are involved.
Federation Magistrates do not serve for life - on the other hand, they're not appinted in the usual manner, either. Federation Magistrates act as sort of "sub-judges", serving to expedite the judicial process by taking on such duties as assigned by the district court who appoints them. Particularly where the caseloads are dense, there's frequently a number of magistrates per district -where districts cover multiple star systems, there's generally at least one magistrate assigned per planet. Federation magistrates may be either full or part-time in their duties, depending upon the volume of work and other factors. In exchange for all this, magistrates are appointed for terms of between four and twelve years.
[The district courts and the Magistrates are drawn from US practice, though US Federal magistrates are full-time to the best of my knowledge.]
All felony criminal proceedings in the Federation civilian system must begin with the voting of an indictment by a Grand Jury. The Grand Jury is 23 citizens appointed from the Judicial District that serve much the same functions as Grand Juries of previous ages - with one exception: For the year in which the Grand Jurors are appointed, they generally act with a great deal of independence -Grand Juries in the Federation courts are nothing like the Grand Juries parodied by a Terran judge in the 20th century, wherein the Grand Jury would "indict a ham sandwich" if the prosecutor proposed it. Instead, Grand Jurors are in many cases fearsome investigators of the matters put before him - it is often nervewracking for prosecutors to put a case before the Grand Jury's investigation: Grand Juries are given their own limited investigative resources (subject to the limitations of the distict court), and Grand Jury service actually begins in most cases 3 to 6 months before the jury is formally empaneled, as jurors are selected and receive a basic legal education.
[The grand jury is, yes, a major change from RL grand juries - bringing them back to their historical functioning a great deal, and restoring a lot of the independence lost over the years IRL. This is made possible by the high standard of education received by most Federation citizens, and makes the process a lot less certain than in RL courts.]
Felony criminal trials are heard before a single judge and a jury of 12. These proceedings would be recognizable instantly to the legally-interested person of the 20th and 21st century as something familiar - even though the process now involves much greater use of technology and remote communications, much has not changed. All criminal cases in Federation courts are brought in the name of the United Federation of Planets (the case is captioned, for example, "The United Federation of Planets v John Smith" with a short caption of "Federation v Smith"), and prosecuted by the local UFP Attorney's Office (more formally, the "United Federation of Planets Attorney for <district>"), with defendants being represented either by the Federation Defenders' Service (public defenders) or private counsel. While the Federation Defenders Service has lawyers of high caliber, the volume of cases the average office (and therefore the average lawyer within the office) undertakes is greater than the average private attorney, somewhat reducing their effectiveness.
English Common Law's system of precedents and general structure is the basis for the court system of the UFP, and this shows in the structure of cases: The adversarial system is strictly enforced. On the other hand, juries are (with a great deal of reluctance on the part of the court, granted) given free reign to use resources beyond formally submitted evidence, subject to the judge's restrictions, and jury nullification, while not strictly approved of, is not illegal. At the same time, judges are also given a great deal of freedom, subject to the appellate process, including near-absolute freedom in sentencing. (Some judges, particularly in frontier districts, can get very creative indeed.)
[Again, when one presumes a much higher standard of education among Federation citizens, the jury can do so much more, plausibly. On the other hand, because mandatory sentences and "sentence guidelines" can occasionally result in manifestly unjust outcomes, giving judges back their historical freedom in sentencing helps check the jury and the prosecutor. Frontier judges, naturally, are a good deal less straight-laced than their more settled counterparts. For all UFP judges, I see sentencing guidelines as a suggestion, not a rule - but this is especially true for out on the frontiers.]
After sentencing, convicted offenders are placed in the custody of the Federation Prison Service, which maintains penal settlements throughout the Federation, including entire prison colonies, at varying levels of security. A great deal of emphasis is placed upon rehabilitation for non-violent offenses, and the general regime would be utterly insane to the average Terran of the 20th or 21st century. On the other hand, Federation penal colonies are frequently in very remote and difficult to access systems, and attempted breakouts and unrest are met by both the Prison Service and Starfleet with a great deal of force in reaction.
Death sentences in the civilian system, when they were carried out, were conducted by hanging for human prisoners. Currently, the maximum sentence imposable by a Federation civilian court is Life Imprisonment without possibility of parole. (And in the Federation, Life imprisonment means precisely that.)
[This is sort of the harder to explain bit of Federation justice - how the hell do they keep crime low without being Orwellian? Answer: While the system is focused on rehabilitation for most prisoners, for those who use violence or who pose a real threat, the Federation is totally ready to make your imprisonment for life (as in, "until you die and we make sure you're dead"), and enforce that term of imprisonment harshly. They don't have to be as harsh within the prisons because getting out is difficult - should you somehow manage to escape, they're completely ready to use lethal force. Unrest is also met with the same rage - particularly violent unrest.]
Civil cases are even more recognizable to Terrans of a former era - Federation civil cases work in pretty much exactly the same way as cases in the United States or United Kingdom in the 21st century. The details may be different (juries are a lot less common, for instance), but the broad strokes are the same.
[Plus ca change, all I can say. The civil court system works remarkably well in broad strokes - I can't see the Federation not borrowing where things work.]
[Next post will move out of the judicial system. It was supposed to be the shortest part, sadly.]
And my thought basically is this.
What we know about the Federation's governmental structure from canon is a jumbled, confused mess.
I disagreed with T'Girl positing Starfleet as a fourth branch of government when she mentioned it in the thread on this forum postulating a possible structure for Starfleet Command/levels above the individual starship, but I could see where it comes from: The disturbing lack of mention generally given to non-Starfleet organizations throughout the TV series and the movies.
This thread aims to fix that - to posit and debate what the Federation government might look like.
---
For the record, some starting points:
Because if you try to figure out things in the time of TOS it gets confusing at best and downright insane at worst (partly because the Federation wasn't even invented until during the series run), I mean to look at the government as it might exist in 2383; hence, the TNG/DS9/VOY era.
I'm going to call the novels "helpful but not authoritative", because I haven't really read the novels.
My sources of inspiration here will be, in no order, canon such as it exists and is not contradicted (which, sadly, eliminates much of it), RL political science and other social sciences (more than RL governments or polities themselves), plus a good deal of speculation.
I will admit here that my knowledge of canon is not encyclopedic.
---
Starting assumptions about the universe:
1. Humans and the Federation have economies, use money, and so forth. This is a hotly-debated point in Trek canon, but numerous governmental systems would not work at all if money did not exist and was not important. Over in the Trek Lit forum, me and Myasisichev (apologies if I misspelled that) brought up contracts law and torts law - and Myasisichev put in absolutely hilarious terms what a lack of monetary remedies would do to products liability law. The point is that without money, bad things happen.
2. Earth is a paradise, sort of. As are Vulcan, Andor, Tellar, and similar "inner core" systems, sort of. How this occurs will be analyzed, briefly. Note the specificity and qualifiers. These matter.
Finally: Occasionally, I will put things in []'s (brackets). These are "Margin notes" - not part of the document as such, but intended to be explanations, clarifications, and commentary.
---
So, starting from the top. That is, the foundational documents of the UFP.
First off, what are they?
The Articles of Federation go by a variety of names. However, this is the fundamental treaty, the accession to which officially makes a Member State a part of the Federation. Yes, you read that right - it's legally a treaty. There are states, as subjects of interstellar law (such as it is) beneath the Federation.
The Articles set out the fundamental aims of the Federation, and establish a temporary structure "until the Member States may decide to institute between them further instruments".
The Federation Constitution is one of those further instruments - adopted by each Member State upon entry to the Federation, it is entrenched law that sets out the fundamental governing structure of the UFP. It is, in other words, strictly a "structural" document; rights and the like are not generally mentioned.
The Federation Charter of Rights actually handles the "Bill of Rights" functions seen in some constitutions. It's a separate document from the Constitution, but is entrenched to the same degree.
[Constitution/Charter difference is in part one of in-universe practicality - the initial drafts of the Constitution alone, if RL documents are any indication, probably weighed in at the dozens if not hundreds of printed pages. Debating, let alone understanding, would be greatly impeded if you combined the Constitution and Charter. Partly it's to avoid the problem constitutions which combine the roles frequently have in real life - where they might gradually accrete hordes of amendments. -Penta]
All officers of the United Federation of Planets, civil and military alike, swear or affirm to support the Constitution and the Charter.
[That little paragraph is vital. It shows where loyalty lays: Not to the government of the day, but to the institutions established by the document.]
---
The Articles of Federation are mostly a historical document by 2383 - In daily life, they've long since been superseded by the Constitution and the Charter in importance.
It's important to stop for a minute and note why the structure was designed as it was, with a fairly makeshift government under the Articles replaced by the Constitution and the Charter within a year: The Articles were an exercise in "getting something built for now", with the idea all along of replacing it later. It was negotiated and acceded to by the initial members during the Earth-Romulan War, and nobody was quite sure it'd survive. Either the Romulans would win, or the infant Federation would tear itself apart; either was figured to be much more likely than actually pulling through to the call of the Convention of States which birthed the Federation Constitution.
As it is, they never managed to agree on abrogating the Articles, and so new members still accede to the Articles, then the Constitution and the Charter. By 2383, you probably could come up with reasons to formally consign the Articles to history, but nobody really wants to expend the legal and diplomatic energy that would require.
[Made sense to me, anyway. After 200+ years of the current system, it'd probably take years (and open up numerous cans of worms) to formally abrogate the Articles to history.]
---
The Constitution of the UFP, written in its first drafts in 2161 during the closing stages of the Romulan War, takes its cues in many regards from Terran constitutional and political theory. This is largely intentional - there was no way you could get the Andorians to agree to Vulcan forms of government or the reverse. The Tellarites argued everything. It helped that Earth had by far the most diversity of active cultures among the founding species, and the government of United Earth was a working exercise in making cross-cultural government effective. It might also be mentioned that governmental and constitutional change was happening most rapidly for Earth and its colonies - Vulcan, Andor, and Tellar had had centuries with their current systems in broad form, while Earth had gone from nation-states to a single world government to, now, a multi-species government in only a few generations. To be wholly frank, the ever-pargmatic politicians who negotiated the Constitution knew that if it was to be accepted by humans, they couldn't change things too much. Especially since a law had been passed in the UE parliament requiring the approval of the Federation Constitution by popular referendum - something regarded with intense nervousness by everybody else, even the Tellarites.
[I never liked the idea that change could happen as fast, and as dramatically, as posited in Trek without what would really happen in politics: A not-insignificant population getting suspicious of the deals being worked out behind closed doors, the third massive change to Earth's politics in only a few generations, demanding things slow down, at least. See the Lisbon Treaty in RL Europe for a good example.]
In the event, it was approved by a resounding majority, but still. The law remains on the books, meaning that Earth and its colonies go to the polls whenever it's proposed to amend the Federation Constitution.
[Because power is an aphrodisiac, I don't see Earth and its colonies giving that up any time soon.]
---
Structurally, the government of the Federation is based, with some adaptations for scale and cross-species issues, upon the government of United Earth.
There are three branches, as learned by every Federation child in grade school social studies, inspired by Anglo-American consitutional theory: The executive, the legislative, and the judicial.
The judicial branch is headed by a (currently) 9-member Supreme Court, formally known as the Supreme Court of the United Federation of Planets. Sitting in Paris, this is the last stop for any case in the Federation - there are no appeals of its decisions. As a rule, the size of the court may change as decided by the legislative branch - however, the constitution stipulates that there must be an odd number of seats upon the court. Members of the court (collectively known as "The honorable, the Chief Justice and Associate Justices of the United Federation of Planets", and individually as "<gender title> Chief Justice" and "<gender title> Justice", such as "Mr. Chief Justice" or "Mr. Justice" for human males) serve for life on condition "of good behavior". The Court generally deals only in major issues - on an average year, it only takes (formally, grants certiorari to) 80 to 100 cases. While the death penalty has not been imposed in Federation civilian jurisprudence since the 23rd century, and in Federation military jurisprudence since the early 24th century, it still remains on the books for very limited offenses under the Uniform Code of Military Justice which governs Starfleet - in such cases, all death sentences must be explicitly confirmed by the Federation Supreme Court after oral arguments. It was formerly the practice of the Justices, when announcing their decisions in capital cases, to wear scarlet robes, as opposed to their ordinary black robes.
[The number of cases is taken from RL US Supreme Court caseloads. The robes thing is a touch I recall from somewhere that seemed fitting to the solemnity and "difference" of a capital case.]
Below the Supreme Court, the Constitution does not speak to the Court System, except in prescribing life tenure for Federation judges - however, the Judiciary Act 2163 was one of the first laws passed by the newly-assembled legislative branch, and it quickly established a series of judicial circuits, headed in each case by a Justice of the Supreme Court assigned by the Chief Justice (who, besides his duties managing the Supreme Court, also is President of what is known as the "Judicial Conference of the United Federation of Planets" or Federation Judicial Conference, a body which handles much of the administration of the court system), and staffed also by circuit judges. Generally, the number of circuits has always at least matched the number of associate justices on the Supreme Court, plus the Chief Justice acting as chief circuit judge of the special "Federation Circuit", which handles appeals from lower courts in civil cases involving the Federation government. Circuits are, other than the Federation Circuit, arranged on "geographic" lines. Despite the name, members of the circuit courts have not "ridden circuit" for over a century in most circuits, instead sitting in a permanent location. The exception comes on the frontiers, where it's a rare planet which could permanently support a circuit court's infrastructure burdens. In such cases, the circuit judges travel in starships flown by the Federation Marshals Service, and convene aboard ship or, where possible, on planets for a brief period. Circuit courts generally hear cases in panels of 3 judges, except when appeal is made to the court from the panel, in which case it is heard "en banc" - with the entire court hearing arguments. This is rarely granted, however.
[The Federation Judicial Conference is based upon the Judicial Conference of the United States - such a body seems almost required given the size of the UFP. The circuit courts are based off US practice - except that in the US, circuit courts haven't been mobile for over a century.]
Below the circuit courts are Federation District Courts and Federation Magistrates' Courts. District Courts cover multiple star systems in most instances, and sit as the court of First Instance in most cases brought under Federation law, as opposed to the law of a Member State. (A vast majority of matters, civil and criminal alike, are handled by the court systems of Member States of the UFP, with no involvement from the wider Federation. Appeals from Member State supreme judicial bodies go the local Federation District Court, and up from there.) Judges on Federation Disticr Courts serve for life, and generally sit alone, not in panels as at the appellate levels. However, there are usually multiple district judges per district, headed up by a Chief District Judge. Federation Grand Juries are also empanelled at the District Court level. Each Member State is guaranteed at least one judicial district by common practice - Earth, Vulcan, and other heavily-populated regions often have multiple judicial districts, particularly where a large number of colonies are involved.
Federation Magistrates do not serve for life - on the other hand, they're not appinted in the usual manner, either. Federation Magistrates act as sort of "sub-judges", serving to expedite the judicial process by taking on such duties as assigned by the district court who appoints them. Particularly where the caseloads are dense, there's frequently a number of magistrates per district -where districts cover multiple star systems, there's generally at least one magistrate assigned per planet. Federation magistrates may be either full or part-time in their duties, depending upon the volume of work and other factors. In exchange for all this, magistrates are appointed for terms of between four and twelve years.
[The district courts and the Magistrates are drawn from US practice, though US Federal magistrates are full-time to the best of my knowledge.]
All felony criminal proceedings in the Federation civilian system must begin with the voting of an indictment by a Grand Jury. The Grand Jury is 23 citizens appointed from the Judicial District that serve much the same functions as Grand Juries of previous ages - with one exception: For the year in which the Grand Jurors are appointed, they generally act with a great deal of independence -Grand Juries in the Federation courts are nothing like the Grand Juries parodied by a Terran judge in the 20th century, wherein the Grand Jury would "indict a ham sandwich" if the prosecutor proposed it. Instead, Grand Jurors are in many cases fearsome investigators of the matters put before him - it is often nervewracking for prosecutors to put a case before the Grand Jury's investigation: Grand Juries are given their own limited investigative resources (subject to the limitations of the distict court), and Grand Jury service actually begins in most cases 3 to 6 months before the jury is formally empaneled, as jurors are selected and receive a basic legal education.
[The grand jury is, yes, a major change from RL grand juries - bringing them back to their historical functioning a great deal, and restoring a lot of the independence lost over the years IRL. This is made possible by the high standard of education received by most Federation citizens, and makes the process a lot less certain than in RL courts.]
Felony criminal trials are heard before a single judge and a jury of 12. These proceedings would be recognizable instantly to the legally-interested person of the 20th and 21st century as something familiar - even though the process now involves much greater use of technology and remote communications, much has not changed. All criminal cases in Federation courts are brought in the name of the United Federation of Planets (the case is captioned, for example, "The United Federation of Planets v John Smith" with a short caption of "Federation v Smith"), and prosecuted by the local UFP Attorney's Office (more formally, the "United Federation of Planets Attorney for <district>"), with defendants being represented either by the Federation Defenders' Service (public defenders) or private counsel. While the Federation Defenders Service has lawyers of high caliber, the volume of cases the average office (and therefore the average lawyer within the office) undertakes is greater than the average private attorney, somewhat reducing their effectiveness.
English Common Law's system of precedents and general structure is the basis for the court system of the UFP, and this shows in the structure of cases: The adversarial system is strictly enforced. On the other hand, juries are (with a great deal of reluctance on the part of the court, granted) given free reign to use resources beyond formally submitted evidence, subject to the judge's restrictions, and jury nullification, while not strictly approved of, is not illegal. At the same time, judges are also given a great deal of freedom, subject to the appellate process, including near-absolute freedom in sentencing. (Some judges, particularly in frontier districts, can get very creative indeed.)
[Again, when one presumes a much higher standard of education among Federation citizens, the jury can do so much more, plausibly. On the other hand, because mandatory sentences and "sentence guidelines" can occasionally result in manifestly unjust outcomes, giving judges back their historical freedom in sentencing helps check the jury and the prosecutor. Frontier judges, naturally, are a good deal less straight-laced than their more settled counterparts. For all UFP judges, I see sentencing guidelines as a suggestion, not a rule - but this is especially true for out on the frontiers.]
After sentencing, convicted offenders are placed in the custody of the Federation Prison Service, which maintains penal settlements throughout the Federation, including entire prison colonies, at varying levels of security. A great deal of emphasis is placed upon rehabilitation for non-violent offenses, and the general regime would be utterly insane to the average Terran of the 20th or 21st century. On the other hand, Federation penal colonies are frequently in very remote and difficult to access systems, and attempted breakouts and unrest are met by both the Prison Service and Starfleet with a great deal of force in reaction.
Death sentences in the civilian system, when they were carried out, were conducted by hanging for human prisoners. Currently, the maximum sentence imposable by a Federation civilian court is Life Imprisonment without possibility of parole. (And in the Federation, Life imprisonment means precisely that.)
[This is sort of the harder to explain bit of Federation justice - how the hell do they keep crime low without being Orwellian? Answer: While the system is focused on rehabilitation for most prisoners, for those who use violence or who pose a real threat, the Federation is totally ready to make your imprisonment for life (as in, "until you die and we make sure you're dead"), and enforce that term of imprisonment harshly. They don't have to be as harsh within the prisons because getting out is difficult - should you somehow manage to escape, they're completely ready to use lethal force. Unrest is also met with the same rage - particularly violent unrest.]
Civil cases are even more recognizable to Terrans of a former era - Federation civil cases work in pretty much exactly the same way as cases in the United States or United Kingdom in the 21st century. The details may be different (juries are a lot less common, for instance), but the broad strokes are the same.
[Plus ca change, all I can say. The civil court system works remarkably well in broad strokes - I can't see the Federation not borrowing where things work.]
[Next post will move out of the judicial system. It was supposed to be the shortest part, sadly.]