First execution
A prisoner who, prior to his current incarceration, has not yet served a custodial sentence or has only served less than three months ' imprisonment , is in the so-called first execution ; all other prisoners in the regular prison system .
differentiation
According to the penal enforcement plans of some federal states, there are penal institutions for first and regular prison sentences in order to protect first-time servants from the harmful influences of prisoners who have already committed several criminal offenses .
