From The Truth About Guns:

The “indefiniteness of PSP’s new enforcement policy on what constitutes a firearm in this Commonwealth creates the potential for arbitrary and discriminatory enforcement,” Judge Brobson explained in today’s opinon. “The public policy of this Commonwealth does not favor such vague laws.” And while there “are many ills that our society faces, and government can be an effective force in combatting them,” the “laudable intentions and policy goals of a government agency, however, cannot override limits on governmental power. Simply put, the ends cannot justify the means.”