The constitutional law surrounding health inspections seems clear; inspections may be conducted with consent, with a warrant, or if it falls within one of the few exceptions. Federal, state, and local environmental health personnel must comply with this constitutional mandate and any other appropriate more restrictive statutes. Non-compliance is fruitless and, for the individual sanitarian, may be financially disastrous.
Sikora, V. A.. 1979. Lawful Inspections. Journal of Environmental Health. Vol.41(6). 318-320. https://www.jstor.org/stable/44540102 ISSN: 0022-0892