These are relevant references from the Books where Decree is mentioned.
I make no pronouncements on these matters, but report them as I find them.
Arrive at your own conclusions.
I wish you well,
"The High Castes in a given city," said my father, "elect an administrator and council for stated terms. In times of crisis, a war chief, or Ubar, is named, who rules without check and by decree until, in his judgment, the crisis is passed."
Tarnsman of Gor Book 1 Page 42
"The Initiates have pronounced their sentence," said the officer. "They have decreed a sacrifice to the Priest-Kings to ask them to have mercy and to restore the Home Stone."
Tarnsman of Gor Book 1 Page 102
"When Marlenus fell," said the man, "the Initiates decreed the impalement of all members of his family." He smiled grimly. "To save face before the citizens of Ar, they have demanded that Pa-Kur respect their decree and impale her."
Tarnsman of Gor Book 1 Page 190
"When he was safe," she said, "I did my duty, giving myself to the High Council of Tharna and confessing all. It was decreed that I must lose my silver mask, don the camisk and be collared, and be sent to the Great Farms to carry water to Field Slaves."
Outlaw of Gor Book 2 Page 106
"You will be dead soon enough," he said, stammering on the words. "A hundred tarnsmen have tried to mount this beast, and one hundred tarnsmen have died. The Tatrix decreed it is only to be used in the Amusements, to feed on sleen like you."
Outlaw of Gor Book 2 Page 121
unrestricted by the laws and decrees of Priest-Kings that so limited their development,
Nomads of Gor Book 4 Page 7
A black lance was fixed in the prairie about four hundred yards away. A rider beside it, on a kaiila, marked its place. It was not expected, of course, that any of the girls would reach the lance. If one did, of course, the rider would decree her safe.
Nomads of Gor Book 4 Page 70
One of the decrees of Marlenus, uttered at his victory feast, yesterday evening, to rounds of drunken cheers and applause, had been to decree a two-hort, approximately two and one-half inch, heightening of the hemline in the already rather briefly skirted livery of female state slaves; this morning I supposed this decree would be adopted by the private slave owners of Ar as well; indeed, I noted that already the effects of the decree were evident in the livery of the girls I passed in the halls.
Assassin of Gor Book 5 Page 393
I had long felt that five Ubars in Port Kar, and the attendant anarchy resulting from this division of power, was politically insufferable, with its competition of extortions, taxes and decrees, but more importantly, I felt that it jeopardized my own interests.
Raiders of Gor Book 6 Page 149
In most cities it is regarded, incidentally, as a criminal offense to enslave one of the caste of players. A similar decree, in most cities, stands against the enslavement of one who is of the caste of musicians.
Beasts of Gor Book 12 Page 44
In Gorean mythology it is said that there was once a war between men and women and that the women lost, and that the Priest-Kings, not wishing the women to be killed, made them beautiful, but as the price of this gift decreed that they, and their daughters, to the end of time, would be the slaves of men.
Dancer of Gor Book 22 Page 352
"The Ubara is above the law?" asked Marcus, who had an interest in such things.
"In a sense, yes," said Tolnar, "the sense in which she can change the law by decree."
Magicians of Gor Book 25 Page 455
"You think words are things," said Arashi, "but things are things, not words. The name of water does not assuage thirst nor the name of food fill a belly. So, too, the name of arrest does not arrest. A decree without the sword is no more than a sword without a blade. There is no law without the bow and glaive."
Rebels of Gor Book 33 Page 351
The Silver Tarsk was in the Metellan district, on the Via Cora, sometimes referred to as Barrier Street, from an instance in the Occupation when some citizens of Ar had barricaded it against Cosian soldiery whilst most other districts, following decrees from the Central Cylinder, were welcoming Occupational forces with wreaths and flowers.
It was upon such a dais that Talena had occasionally issued her decrees and pronounced her judgments.
"You are clothed now, far more than the law decrees," said Seremides, "for what you are."
"For what I am?" she said.
"Kajira," he said.
"I have no daughter," said Marlenus. "When she shamed me, I disowned her."
"She is of your blood!" cried Decius Albus. "That no law, no decree, can change! Bring the woman forth!"