Life imprisonment in Turkey is a legal form of punishment and the most severe form of punishment. In most cases life imprisonment replaced capital punishment. Law 4771 of 3 August 2002 abolished the death penalty for peace time and replaced capital punishment with life imprisonment for 17 provisions of the Turkish Penal Code. Law 5218 of 14 July 2004 abolished the death penalty completely. This law provided that in some 40 provisions of the Turkish Penal Code and other laws such as the Law on Forests the death penalty was replaced by aggravated life imprisonment (tr: ağırlaştırılmış müebbet ağır hapis cezası).
On 1 June 2005 a number of news laws such as a new penal code (Law 5237), a new code of criminal proceedings (Law 5271) and new law on the execution of sentences (Law 5275) entered into force. Articles 45 to 52 of the Turkish Penal Code (TPC) of 2005 divide sentences into strict imprisonment, ordinary imprisonment, and fines. Imprisonment is divided into aggravated life imprisonment, life imprisonment and termed sentences of imprisonment. Indefinite sentences besides life imprisonment and aggravated life imprisonment do not exist in Turkey. Article 47 TPC states that aggravated life imprisonment will last for a whole life.
The Law 5275 on the Execution of Sentences provides that prisoners sentenced to aggravated life imprisonment are held in rooms for one person and are allowed one hour of open air or sports per day. Under subparagraph c), prisoners serving aggravated life imprisonment may have their daily one-hour open-air exercise and sports period extended and may be allowed to engage in limited contact with prisoners accommodated in the same unit, depending on the risk factors, security requirements and the efforts and good behaviour they demonstrate in rehabilitation and educational activities. Under subparagraph d), such prisoners may engage in a trade or occupational activity considered suitable by the administrative board, if conditions in the place where they are held so permit. They can make phone calls of 10 minutes length every fortnight and receive visits of one hour's length every two weeks. The Committee for the Prevention of Torture (CPT) considers that the very philosophy underlying Article 25 of Law 5275 should be rethought. The decision whether or not to impose an isolation-type regime should lie with the prison authorities and always be based on an individual risk assessment of the prisoner concerned; further, the regime should be applied for as short a time as possible, which implies that the decision imposing it should be reviewed at regular intervals.
Article 107 of the Law on the Execution of Sentences (LES) provides that in case of good conduct (tr: iyi hâl) prisoners may be released on condition. In cases of rehabilitation, ill health, or permanent disability, the President of the Republic may pardon inmates. Prisoners sentenced to aggravated life imprisonment can be paroled after serving at least 36 years, or 40 years if given more than one sentence. For those convicted of terrorism, there is no parole, and thus they will spend the rest of their lives in prison. In addition, they can be pardoned or have their sentenced reduced by the President. Inmates sentenced to ordinary life imprisonment can be paroled after serving 30 years, or 36 years if given more than one sentence. However, parole is not mandatory, and if rejected, inmates can reapply every 3 years. All other people sentenced to terms of imprisonment can become paroled for good behavior after they serve two thirds of their sentence, or three fourths if sentenced in cases of terrorism or sex crimes, in prison. However, parole is only possible if the inmate made no violations of prison rules. For those sentenced to less than one year in prison, they can be released after serving half the sentence.