It would appear that the world on which the colony was forced to settle is in the sphere of what the Federation considers it's space. They were after all scouting for colony sites.
That's an interesting issue. Supposedly, nothing anywhere close to the wormhole belonged to the Federation, apart perhaps from a putative UFP Consulate aboard DS9. It was all neutral space, although mostly populated with folks who preferred to be in cahoots with Cardassia or at odds with the UFP. This of course does not mean the UFP wouldn't have considered the region its informal mandate, and all the colonization going on could have been in attempt to establish
de facto footholds there, hopefully leading to
de jure ones later on. But it probably doesn't give the UFP a legal leg to stand on in "Paradise" yet.
So If I kidnapped a group of people transported them against their will to an island that was unclaimed (and in international waters) and prevented them from leaving or making contact with the outside world and some died as a result of my actions. I wouldn't be accountable for those deaths?
You could be tried on kidnapping, and you could be held accountable for the deaths - but you should not be eligible for a murder charge, unless "died as a result" meant you actively did something to take their lives. That would be applying utterly unreasonable standards. What if you were the skipper of a cruise liner and your paying passengers got stranded on that island with you in an honest accident? When they started dying of the usual, perfectly natural causes, why should you be getting murder charges for that?
Heck, in the latter case, you'd probably be held
more accountable, as captains have unreasonable responsibilities burdened on them by tradition. Alixus was just a civic leader.
The important thing is that something that otherwise doesn't qualify for a crime in any way (say, somebody dying of the flu) must never be allowed to become a crime just because a criminal did it.
It doesn't matter what species they are. Only the planet that they were born and lived on. If a human, for example, is born and raised on a non-Federation world (such as New Sydney from "Prodigal Daughter"), they are not Federation citizens.
Now that sounds unreasonable as well. Planets are just happenstances. If one wanted one's human child, born on Bolarus and raised the Tellarite way in the Little Andoria of the local capital, to become citizen of Vulcan, this should really be a matter of abstract formality unrelated to any of the species, locations, cultures or administrations involved. If one wanted said child to become citizen of Miradorn instead, this should require a bit of paperwork with both the UFP and Miradorn. But what possible cause could be served by dictating that said child can only be Bolian?
Timo Saloniemi