To enforce this title, the Secretary has special police powers, may arrest any violator of this title, and seize for use as evidence, without formal warrant, incorrect or unsealed weights and measures or amounts or packages of any commodity found to be used, retailed, offered or exposed for sale, or sold in violation of law. To perform his official duties, the Secretary may enter into or upon any commercial structure or premise, without a formal warrant and stop any person and require him to proceed, with or without any vehicle of which he may be in charge, to a place the Secretary may specify.