Section 3. Any Person or Persons, Company or Association, or Any

person in the employ of such company or association violating any of the provisions of this act shall be guilty of a misdemeanor and upon conviction shall be sentenced to pay a fine not exceeding five hundred dollars, or undergo an imprisonment not exceeding one year, or both or either at the discretion of the court.

Provided, That if any company or association be convicted under this act it shall be sentenced to pay a fine not exceeding five thousand dollars.

Provided further, That the provisions of this act shall not be construed as applying to policemen, constables or specials appointed by municipalities for municipal purposes.

As long as the Kearns act stands--and it is safe to say that it is not likely ever to be repealed--the Pinkerton Detective Agency is effectually barred out of Pennsylvania.