(1) The department shall administer the provisions of ss. 828.22-828.26. It shall adopt and may from time to time revise rules, which rules must conform substantially to and must not be less restrictive than the rules and regulations promulgated by the Secretary of Agriculture of the United States pursuant to the federal Humane Methods of Slaughter Act of 1958, Pub. L. No. 85-765, 72 Stat. 862, and any amendments thereto. (2) The department may appoint any member of its staff as an official inspector for the purposes of ss. 828.22-828.26. Such inspector shall have the power to enter the premises of any slaughterer for the purposes of verifying compliance or noncompliance with the provisions of ss. 828.22-828.26. (3) The department has the authority to conduct inspections of the premises of slaughterers at random intervals.