Article 110 Execution of Sentence of Imprisonment (1) The sentence of imprisonment or juvenile imprisonment shall be executed in closed, semi-open or open institutions for the execution of punishments. (2) The sentence of long-term imprisonment shall be executed in the closed-type institution for execution of punishments. Article 111 Limits as to the Execution of Punishments A person against whom a punishment is to be executed shall be deprived of his rights or have his rights restricted pursuant to the law only insofar as it may be necessary to achieve the purpose of the particular sentence. Article 112 Labour by Convicted Persons (1) A person sentenced to imprisonment, long-term imprisonment or juvenile imprisonment, if able to work, may work if he consents to it. (2) If a convicted person requests or consents to work, carrying out of such work shall be enabled. (3) The work of convicted persons should be useful and should correspond as much as possible to the contemporary way of performing the same kind of work at liberty, and to the professional and other abilities of the convicted persons. Article 113 Execution of Sentence of Juvenile Imprisonment (1) The sentence of juvenile imprisonment is served by senior juveniles in special institutions for juvenile offenders, where they are to stay until they reach eighteen years of age. Those who have reached eighteen but who have not reached twenty-three years of age (younger adults) shall serve the sentence of juvenile imprisonment in special institutions for younger adults or in a special department of the institution where adults are serving sentence, where measures are to be taken in order to ensure that contact of younger adults and older convicted persons is prevented. If a person has not completed serving the punishment until the time he reached twenty-three years of age, he shall be sent to prison for adults. (2) A younger adult may stay in the institution for juvenile offenders as long as it is necessary in order to complete his schooling or training. However, a younger adult may not stay, under any circumstances, in the institution for juvenile offenders if this would be detrimental, in any way, for juveniles serving the sentence there. (3) The choice of occupation for a convicted juvenile shall be made in accordance with his abilities and inclinations toward particular occupation, aiming to occupational training and in accordance with the possibilities available at the institution for juvenile offenders. Younger adult shall also have the possibility for education and training regardless of whether he is serving the sentence in special institutions or in special departments of prisons for adults. (4) Working hours of the convicted juvenile shall be set so to enable schooling and training, and to leave enough time for physical exercise and entertainment. (5) The convicted juvenile can be released on parole if he has served one third of his sentence, but not before one year of the time to be spent in the institution for juvenile offenders has elapsed. During the parole, the court may order the measure of intensified supervision by a competent social welfare body. Revocation of parole shall be done in accordance with the provisions of Article 46 (Revocation of Parole) of this Code. (6) The convicted juvenile, except in special circumstances, shall be entitled to maintain contacts with his 33