I can hazzard a guess that there has been a murder on the sentinel island, and the sentinalese people handled it. In the far future ships will be their own isl

I can hazzard a guess that there has been a murder on the sentinel island, and the sentinalese people handled it. In the far future ships will be their own islands of justice, unless some overbearing space government tries to protect even those who do not want to be governed. But can that even work, and if so, for how long? Imagine a libertarian owned spacecraft in which the inhabitants decided to just leave the sphere of influence of that government. Would they be chased? What about children born on that ship? What if those children were abused? How far should we chase them? I feel like humanity should punish some crimes universally, but murder isn't necessarily the worst crime. We do need some system of space justice, but I'm not sure what form it should take.