Lithuanian Prison Department (LKD) accumulates persons sentenced to freedom the penalty of deprivation, statistics from 2021, updated annually, from prison institutions. Set includes item number used separate the relevant data by specific year. Item numbers can be presented more accurately using more digits separated points. These include offences of departure from prison nature of the institution, age groups of convicted persons. Data mentioned in the collection measured in units of convicted persons or in years, months, and in days. For convenience, the serial numbers of the set are also used.