those are dog, I can own them and have them pull my sleigh!
Don't forget prison labor; it was highly common in the past and is still highly common today at TL8. Not all of it is profitable, as in some cases prisoners are made to perform pointless tasks as labor itself is considered to be of value in their rehabilitation. Of course, there is also transportation as a punishment - involuntarily shipping off convicts to the colonies (such as Australia for Britain or Siberia for Russia) both to keep malcontents out of the main "civilized" areas and to populate undesirable rocks with unwilling colonists. Many of these transported may even be skilled workers. Some regimes might even specifically frame and arrest people of certain trades which are in high demand in the colonies.
I thought it would probably be more interesting to have 'practical slavery' but dress it up in a cultural 'gilding'.
Imagine the Roman Empire 'Patron-Client' relationship where it works both ways ... you are legally bound to a Patron who has power over and an investment in you, while you have people below you that you have power over and an economic interest in.
Or build it on the Medieval concept of 4 estates and Liege-vassal relationships (down to the serfs).
In Traveller (ATU): Only a Titled Citizen of the Imperium may own a Starship and only YOUR Noble Patron can grant you the documentation to leave the system of your birth. Those titles come with real land and people to govern. Perhaps a character is like Onesimus, you have stolen from your Patron (Philemon) and fled servitude. You now travel with forged papers hoping not to get caught and sent home to face criminal charges. The Captain of the starship has taken you on as crew and learned the truth and must find some way to make things right with your former patron and his current patron.
It will still allow you to play with all of the 'slavery' tropes, it just doesn't need to be yet another 'stop the evil space Orcs and rescue the damsel in distress.'
A 'remote central government' such as the Imperium is going to have a hard time enforcing its anti-slavery laws in the frontier sectors, and there are probably incidents in the core worlds too.
I think context would be important. There are different kinds of slaves and different reasons for enslavement. Some we consider valid, such as punishment for the commission of a crime. Others, such as simply identifed as a particular group that one has no choice joining, not so much. And then there are voluntary slaves.If a slave escapes from a master into a territory/planet/sector that does not recognized the contractural or legal obligations of slavery, would it be enforced by Imperial trade law?
In practice that is the whole point of having slaves, people with people skills that can be talked to like people, but don't have to be treated like people. Regardless of what the law says, owners will not grant their slaves rights, voluntarily.So you have to decide what your sophont rights vs. economic utility of slaves/indentured are at a very basic level.
In practice that is the whole point of having slaves, people with people skills that can be talked to like people, but don't have to be treated like people.
Regardless of what the law says, owners will not grant their slaves rights, voluntarily.
As for economic utility, a major problem with slave labor is that it is not that efficient nor effective.
Spartacus, were he here, might disagree.
Slavery prevents technological development
I think context would be important. There are different kinds of slaves and different reasons for enslavement. Some we consider valid, such as punishment for the commission of a crime. Others, such as simply identifed as a particular group that one has no choice joining, not so much. And then there are voluntary slaves.
Should the owner's rationale be considered justifiable, the slave gets returned. If the owner's rationale is not, the slave is set free, if that is the slave's desire.
In practice that is the whole point of having slaves, people with people skills that can be talked to like people, but don't have to be treated like people. Regardless of what the law says, owners will not grant their slaves rights, voluntarily.
As for economic utility, a major problem with slave labor is that it is not that efficient nor effective. The work force is not invested in the outcome. Slave will tend to do the minimum required, to keep from being punished. Slavery has a corrosive effect on the work ethic of the owners as well. Also, in order to prevent slave revolts, governments end up becoming more oppressive. Many states in the pre Civil War south had laws against teaching slaves to read, despite the added economic utility a reading slave possessed.
The Romans had working Steam Engines equal to 2nd generation industrial age steam engines, but they where coincided toys because the empire had Slave power.
America did not adopt more efficient plows and harvesters that where in use in other parts of the world because of Slave Labor, up until the 1960's Share Croppers and Dirt Farmers relying on animal power where using developments on the inefficient American Patten farm equipment, some of these pattern equipment is still in use in the mechanized age.
Slavery prevents technological development, it retards the development of logistical modeling and other important parts economic evolution