In this Chapter—
"database" means the database established under section 75;
"lead enforcement authority" and "the landlord legislation" have the same meanings as in Part 4;
"relevant banning order" and "relevant banning order offence" have the meanings given by section 83;
"unique identifier" has the meaning given by section 84(1).
Section 111(6) (lead enforcement authority "responsible" for the provisions of the landlord legislation) applies for the purposes of this Chapter as it applies for the purposes of Part 4.