55.If an investigator, who is entitled to enter premises under section 22, considers that there is an emergency, the premises may be entered at any time, using reasonable force. The investigator need not satisfy the conditions set out in section 26 (entry to dwellinghouses) nor apply for a warrant. The investigator on entering any premises under this section may take any other person (including a constable if serious obstruction is expected) as well as any equipment or material required for the purpose for which the power of entry is being exercised. The investigator may also direct that the premises and anything in or on them may be left undisturbed for as long as the investigator considers appropriate. All other investigatory powers may also be exercised.
56.This section defines an “emergency” as existing if there is a significant risk to public health and the nature of that risk is such that immediate action is necessary to verify the existence of the risk; to determine the cause of the risk; or to take action to prevent, or prevent the spread of, infectious disease or contamination.