The Nuclear Security (Secretary of State Security Directions) Regulations 2018 No. 408

SCHEDULE Powers which may be exercised by enforcement officers

Power to take persons and equipment onto premises

3.  In exercising the power of entry mentioned in paragraph 1, an enforcement officer may—

(a) be accompanied—

(i) by any person approved by the Secretary of State for the purpose; and

(ii) if the enforcement officer has reasonable cause to expect any serious obstruction in the exercise of any of that officer’s powers, by a constable; and

(b) take along any equipment or materials required for any purpose for which the enforcement officer is exercising the power of entry.