Prime Directive


In the fictional universe of Star Trek, the Prime Directive is a guiding principle of Starfleet, prohibiting its members from interfering with the internal and natural development of alien civilizations. The Prime Directive applies particularly to civilizations which are below a certain threshold of technological, scientific and cultural development; preventing starship crews from using their superior technology to impose their own values or ideals on them. Since its introduction in the first season of the, it has served as the plot focus of numerous episodes of the various Star Trek series.

The Prime Directive

Although the concept of the Prime Directive has been alluded to and paraphrased by many Star Trek characters during the television series and feature films, the actual directive has never been provided to viewers. The most complete attempts to define the directive have come from non-canonical works and include:
The Prime Directive prohibits Starfleet personnel and spacecraft from interfering in the normal development of any society, and mandates that any Starfleet vessel or crew member is expendable to prevent violation of this rule

and
As the right of each sentient species to live in accordance with its normal cultural evolution is considered sacred, no Starfleet personnel may interfere with the normal and healthy development of alien life and culture. Such interference includes introducing superior knowledge, strength, or technology to a world whose society is incapable of handling such advantages wisely. Starfleet personnel may not violate this Prime Directive, even to save their lives and/or their ship, unless they are acting to right an earlier violation or an accidental contamination of said culture. This directive takes precedence over any and all other considerations, and carries with it the highest moral obligation.

Creation and evolution

Creation of the Prime Directive is generally credited to original-series producer Gene L. Coon. The Prime Directive reflected a contemporary political view that US involvement in the Vietnam War was an example of a superpower interfering in the natural development of southeast Asian society; the creation of the Prime Directive was perceived as a repudiation of that involvement.

Notable on-screen references

The Prime Directive has been criticized in-universe because of the inconsistencies in which it is applied. In the TOS episodes "Friday's Child |Friday's Child," "For the World Is Hollow and I Have Touched the Sky," "The Cloud Minders," "The Apple |The Apple," "The Return of the Archons," and "A Taste of Armageddon," the crew of the Enterprise interferes with laws or customs of alien worlds to achieve a Federation objective, to save the lives of the crew, or to better the lives of the inhabitants.
Out-of-universe criticisms focus on the above problems; that the Prime Directive is simply a plot device and is manipulated by the writers. Janet D. Stemwedel points out a potential conflict between the anti-colonialist intentions of the Federation and the "ethical project of sharing a universe" which would require "a kind of reciprocity — even if your technological attainment is quite different, it means recognizing you are owed the same moral consideration." Stemwedel writes, "If your concern is not to change the natural behavior or development of alien citizens at any cost, your best bet is to stay at home rather than to explore new worlds." Ars Technica asked lawyers to comment on the Prime Directive and other Star Trek legal issues. Criticism included interpreting the Prime Directive as a product of the Cold War environment in which Roddenberry wrote as well as indicating that enforcement would be lacking.

Temporal Prime Directive

The "Temporal Prime Directive" is a fictional guideline for time travelers from interfering in the natural development of a timeline.
In the TNG episode "A Matter of Time |A Matter of Time", Picard compares the Prime Directive to a possible Temporal Prime Directive:
"Of course, you know of the Prime Directive, which tells us that we have no right to interfere with the natural evolution of alien worlds. Now I have sworn to uphold it, but nevertheless I have disregarded that directive on more than one occasion because I thought it was the right thing to do. Now, if you are holding on to some temporal equivalent of that directive, then isn't it possible that you have an occasion here to make an exception, to help me to choose, because it's the right thing to do?"

As 31st century time traveler Daniels revealed to Captain Jonathan Archer in the episode "Cold Front |Cold Front", as time travel technology became practical, the Temporal Accords were established sometime before the 31st century, to allow the use of time travel for the purposes of studying history, while prohibiting the use of it to alter history.