citizens in PA are "saps"
Some representative or several, here in the Keystone state, have been influenced by publishers, or special interests, to classify the PA Crime Code as a certain type of publication, so that it cannot be accessed through the internet as most other state documents can.
Therefore, even though the citizen cannot plead ignorance of the law, his ability to know the very criminal law that he is required to obey, is greatly restricted. The code is available in the central branch of the public library here in Pgh; I'm supposing that it is the same for Phila, Erie, etc.
Now, who has the free time to go to a select library, perhaps in a far away locale, to research the law that we live under? In effect, the criminal law in Pennsylvania has been taken away from the public records.
There is a section of that law, entitled "Prohibited Offensive Weapons," perhaps section #198 of the code. Blackjacks and similar devices are included in that restricted category. Law enforcement officials may have them on their person, provided that they are certifed by an approved school in the use of such.
I believe that any other person, including security guards; carring them
may be guilty of serious offense. (I forget. Felony, third degree?)