Klingon Ambassador: Behold the quintessential devil in these matters: James T. Kirk, renegade and terrorist! Not only is he responsible for the murder of a Klingon crew, or the theft of a Klingon vessel; See now the real plot and intentions. Even as this Federation was negotiating a peace treaty with us, Kirk was secretly developing the Genesis Torpedo, conceived by Kirk's son, and test-detonated by the Admiral himself. And the result of this awesome energy was euphemistically called the Genesis Planet, a secret base from which to launch the annihilation of the Klingon people! We demand the extradition of Kirk! We demand justice!!
Sarek: Klingon justice is a unique point of view, Mr. President. Genesis was perfectly named: the creation of life, not death. The Klingons shed the first blood while attempting to possess its secrets.
Klingon Ambassador: Vulcans are well-known as the intellectual puppets of this Federation!
Sarek: Your vessel did destroy U.S.S. Grissom. Your men did kill Kirk's son. Do you deny these events?
Klingon Ambassador: [proudly] We deny nothing. We have the right to preserve our race.
Sarek: You have the right to commit murder? [audience uproar as the Klingon ambassador is offended by Sarek's words]
Federation President: Silence! SILENCE!!! [uproar stops] There will be no further outbursts from the floor.
Sarek: Mr. President, I've come to speak on behalf of the accused.
Klingon Ambassador: Personal bias! His son was saved by Kirk!
Klingon Ambassador: Starfleet regulations?! That's outrageous!! Remember this well: There shall be no peace as long as Kirk lives!
Leonard McCoy: You think they could at least send us a ship. It's bad enough to be court-martialed and to have to spend the rest of our lives mining borite, but to have to go home in this Klingon flea trap!
James T. Kirk: You could learn a thing or two from this flea trap, it's got a cloaking device that costs us a lot.
Federation President: As you wish. The charges and specifications are - conspiracy; assault on Federation officers; theft of Federation property, namely the starship Enterprise; sabotage of the USS Excelsior; willful destruction of Federation property, specifically the aforementioned USS Enterprise; and finally, disobeying direct orders of the Starfleet commander. Admiral Kirk, how do you plead?
James T. Kirk: On behalf of all of us Mr. President, I am authorized to plead guilty.
President: So entered. Because of certain mitigating circumstances, all charges but one are summarily dismissed. The remaining charge, disobeying orders of a superior officer, is directed solely at Admiral Kirk. I'm sure the admiral will recognize the necessity of keeping discipline in any chain of command?
President: James T. Kirk, it is the judgment of this council that you be reduced in rank to captain. And that as a consequence of your new rank, you be given the duties for which you have demonstrated unswerving ability, the command of a starship. Captain Kirk, you and your crew have saved this planet from its own short-sightedness, and we are forever in your debt.