What makes you think they will not be back on the streets of your town in a matter of months?
I think people in these poor countries will be very happy to see these criminals on streets for having electricity and fresh water in their homes.
Criminals can buy fake passports and re-enter your country. Do you think they care if you strip them of citizenship? They are criminals they don't give a shit about the paperwork or the laws.
And they be able to change their DNA or retina?!
Right now, almost anyone can travel to any of the European Union member nations, and reside there.
From what time Sub-Saharan African countries entered the EU?!
Also, I don't support the idea of letting the convict walk free, after committing heinous crimes. This will encourage other criminally minded people to commit similar offenses.
Most people will prefer to live in Swedish prison instead of walking free in Burundi!
Where do you plan to exile them to? Australia? UK already tried that...
What country wants a bunch of reject criminals?
I wrote in the OP - poorest countries in the world for some monetary compensation (much less than prison costs).
This news just came in from the United Kingdom. They are stripping the citizenship of Muslim pedophiles, who abused kids in Rotherham and London. These guys will be deported to Pakistan:
+1. France also plan to do the same!
http://www.chron.com/news/world/article/French-lawmakers-to-vote-on-divisive-citizenship-6820243.php