[orwin]

> And we don't really have "forever jail": it's 20 years I think and can even be shortened if prisoner show in jail that he's ready to come back to society (except if it would be a trouble for the society).

20 year is the maximum required in case of non-premeditated murder (or manslaughter on minor i think).

In some cases (murder of a minor, group manslaughter of a state agent, premeditated murder of a state agent and one other case i can't remember), the criminal can be given "incompressible" perpetuity. After a minimum of 30 year, on a judge decision (often because the murderer is dying or very, very old), the "incompressible" part can get shafted.

Also death penalty is expensive. More than keeping prisonners locked up.