Abstract
To achieve the successful correction and re-education of those sentenced to deprivation of freedom, criminal and correctional-labor legislation provides that different categories of convicts shall be housed in different kinds of correctional-labor institutions in accordance with the nature and degree of social danger of the crimes they have committed, their previous criminal behavior, the personalities of the prisoners, and other circumstances specified in law. This creates the conditions for preventing more dangerous and socially and morally degraded criminals from negatively influencing other, less dangerous convicts, and makes it easier to exercise correctional-labor and socializing influence on them. The principles of criminal and correctional-labor legislation that provide for separate types of custody for different categories of persons sentenced to deprivation of liberty were further developed by the legislative acts adopted by the Presidium of the USSR Supreme Soviet on February 8, 1977, amending and supplementing those principles. In particular, persons who committed crimes by negligence, if sentenced to deprivation of liberty, shall as a general rule serve their terms separately from those convicted for intentional crimes.