Life imprisonment is legal under the Greek penal code, and is the most severe punishment available under the law.
Such life sentence is mandatory for multiple murders and any act of terrorism, including aircraft hijacking.
For a single life sentence, an inmate can become eligible for parole after serving 16 years.
For those who receive multiple life sentences, parole eligibility can begin after 20 years.
Parole is not mandatory, and if rejected, the inmate can reapply every 2 years until he or she is released or dies.