"Well we have two options. Option one. We go through the process of trying you without jury, processing you through the prison system, then granting you a relatively quick execution. Problem with that is our prisons are backed up to the point where we have to let people out on the street. We bring you in, we have to let some other asshole go. We're not willing to let out anymore psychos."
"Option two is lifetime community service. You work for the force with bare minimum wage paying your debt to society. You help us out with a few cases and you're free to move to other systems and do some work over there. You'll be on the job 24/7. No vacation days, but you do receive the rights of citizenship."
"Pick option two and we can protect you from current outstanding warrants in this star system. We can't help outside of our sphere of influence, but you'll be welcome to come back anytime. Sound good?"