An Act amending Titles 18 (Crimes and Offenses), 42 (Judiciary and Judicial Procedure) and 61 (Prisons and Parole) of the Pennsylvania Consolidated Statutes, in authorized disposition of offenders, further providing for sentence of persons under the age of 18 for murder, murder of an unborn child and murder of a law enforcement officer; in sentencing, further providing for sentences for second and subsequent offenses; and, in probation and parole, further providing for parole power.