Section 4. Inspection of land and building.
(a) General rule.--The secretary or his agents, in carrying out the provisions of this act, shall have free access, within reasonable hours, to any land, premises, building, vehicle, vessel, car or other place and shall have the power to open, inspect and sample any bundle, package or other container of plants or plant products. It shall be unlawful to deny access to any agent or to hinder, thwart or defeat inspection or other necessary activity by misrepresentation or concealment of facts or conditions.
(b) Authority to arrest.--The secretary or his agents, the Pennsylvania State Police or any other officer whose duty it is to preserve the peace of this Commonwealth may arrest without a warrant any person found violating any of the provisions of this act.