In order to carry out the purpose and provisions of this chapter, the Housing Standards Board is hereby authorized to enter, examine and survey at all reasonable times and, in an emergency, at any time all dwellings, rooming houses, dwelling units and premises. The owner or occupant of every dwelling, rooming house, dwelling unit and rooming unit or the person in charge thereof shall give the Housing Standards Board free access to such dwelling, rooming house, dwelling unit or rooming unit and its premises, at all reasonable times and in an emergency, for the purpose of such inspection, examination and survey. The Housing Standards Board shall display proper and satisfactory identification prior to any demand for entry. Upon refusal of a property owner and/or tenant to allow inspection of his property, the Housing Standards Board shall seek a search warrant from proper authorities if an inspection of said property is required to carry out the provisions of this chapter.