In authorized disposition of offenders, further providing for sentence for murder, murder of unborn child and murder of law enforcement officer; in arson, criminal mischief and other property destruction, further providing for the offense of arson and related offenses; in jurisdiction of appellate courts, further providing for direct appeals from courts of common pleas; in post-trial matters, further providing for postconviction DNA testing and for disposition and appeal; in sentencing, further providing for sentencing procedure for murder of the first degree; and, in execution procedure and method, repealing provisions relating to issuance of warrant.