. (1) With the consent of the prisoner, his or her conditional release may be postponed if new sentences of imprisonment or conversion sentences for unpaid fines are to be enforced or the prisoner wants postponement of conditional release for another justified reason. (2) Conditional release may be postponed without the consent of the prisoner if on the basis of the conduct of or threats made by the prisoner there is the evident danger that on release he or she would commit an aggravated offence against life, health or liberty and postponement of the release is necessary in order to prevent the offence. (3) A decision pursuant to subsection 2 to postpone release shall be taken up for reconsideration at intervals of at most six months. (4) Chapter 20 of the Imprisonment Act applies to appeal of the decision to postpone conditional release and Chapter 21 of said Act applies to the authority to take the decision on the postponement of release. Section 10 – Conditional release from life imprisonment (1099/2010) (1) A person sentenced to life imprisonment may be conditionally released at the earliest when he or she has served twelve years in prison. A person sentenced to life imprisonment for an offence committed before the age of twenty-one years may be conditionally released at the earliest when he or she has spent ten years in prison. (2) In considering conditional release attention shall be paid to the nature of the offence or offences that had led to the sentence of life imprisonment, other punishments incorporated in the sentence of life imprisonment or that have been served during the period of imprisonment referred to in section 10a, the other possible subsequent criminality of the convicted person, and the factors referred to in section 9, subsection 2. In the consideration of release, attention shall be paid to the implementation of the plan for the term of sentence referred to in Chapter 4, section 6 of the Imprisonment Act and also otherwise to the conduct while in prison. Attention may also be paid to the undertaking of the prisoner to comply with the conditions of the medical treatment referred to in section 4 of the Probationary Liberty Under Supervision Act (629/2013) and of the possible other related treatment and support. (628/2013) (3) Before a person sentenced to life imprisonment is conditionally released, he or she may be placed in probationary liberty under supervision. If the Central Administration Unit of the Criminal Sanctions Agency deems that, due to an offence that has become evident, or due to revocation of the consent referred to in section 23, subsection 1 of the Probationary Liberty Under Supervision Act, or due to revocation of the probationary liberty referred to in section 26, subsection 1 of said Act, before the release on probationary liberty under supervision, the release referred to in subsection 2 should be reconsidered, it shall submit the matter for reconsideration by the Helsinki Court of Appeals. The same procedure shall apply