Those that commit crimes need to understand we don’t ever get out of anything! All evidence (our life) is recorded on earth and thus, we’ll see in our life review! For the criminal, HELL can be real! Criminals find out very quickly that they are in peril, as they are greeted by the family(s) of the victim(s)!
The façade of mortality we experience on the earth is there to allow advanced beings an opportunity to begin again and to evolve into those capable of living in an immortal community.
We live our lives here on earth and out there over and over again attempting to learn this lesson: “there are no variations to the truth”, it is the universal constant! We say to ourselves, this time it will be different as though life was a lottery and this time our number is going to come up. Life is not a lottery,
Advanced beings spend a great deal of their time mining because the technology they depend on to keep them alive and “other dimensional” requires a great deal of raw minerals mined from the earth.
With respect to your concern about the Alien calling earth a “prison planet”… nothing could be further from the truth….