An Act amending Title 18 (Crimes and Offenses) of the Pennsylvania Consolidated Statutes, further providing for possession of firearm or other dangerous weapon in court facility, for terroristic threats, for harassment and stalking, for grading of theft offenses, for harassment and stalking by communication or address and weapons or implements for escape and for persons not to possess, use, manufacture, control, sell or transfer firearms; providing for possession of firearms with altered manufacturer's number; further providing for the sale or transfer of firearms and for registration of firearms; providing for locking device for firearms; and limiting certain lawsuits.