This Section provides definitions of key terms used throughout Part 5 of the Act.
	Subsection (1) defines the "Advisory Board" to refer to the Board established under Section 93, which provides advice to the Secretary of State regarding labour market enforcement.
	It also defines "ancillary offence" as a range of secondary offences connected to labour market offences, including attempts to commit, conspiracy, incitement, or aiding and abetting such offences. It also includes offences under Part 2 of the Serious Crime Act 2007.
	The subsection also defines ‘’business’’ as a trade or profession, and any activity carried on by a body of persons. It also defines "employee" as having the same meaning as in section 230(1) of the ERA 1996 or Article 3(1) of the Employment Rights (Northern Ireland) Order 1996 and defines "employer’s association" as having the same meaning as in section 122 of the Trade Union and Labour Relations (Consolidation) Act 1992. It also defines "trade union" as having the same meaning as in section 1 of that same Act.
	The subsection defines "enforcement function" and "enforcement officer". "Enforcement function" refers to the Secretary of State’s enforcement responsibilities as defined in Section 91. "Enforcement officer" means a person appointed by the Secretary of State under Section 90(3) to carry out enforcement functions.
	The subsection defines "labour market offence", "LME order", "LME undertaking", "non-compliance with relevant labour market legislation",". "Labour market offence" is defined to include both direct offences under labour market legislation and any ancillary offences related to such offences. "LME order" and "LME undertaking" refer to specific enforcement measures as defined under Sections 123(2) and 119(3), respectively. "Non-compliance with relevant labour market legislation" is defined by Section 150 and includes a failure to meet statutory requirements, breaches of licence conditions, and labour market offences.
	The subsection defines terms that relate to the Secretary of State’s power to issue notices of underpayment and penalties in respect of non-payment of statutory pay rights. "Liable party", "underpaid individual" and "relevant day" have the meaning given in Section 103(1), "notice of underpayment" refers to a notice described in Section 103(2) , and a "statutory pay provision" refers an enactment as defined in Section 103(7).
	Subsections (2) and (5) insert definitions of "employer" and "worker" for the purposes of this part. These definitions extend the definitions of employer and worker so that they reflect the persons on whom requirements are imposed (in the case of subsection (2)) and rights conferred (in the case of subsection (5)) by sections 1 to 8 of this Act.
	Subsection (3) clarifies the meaning of "premises" for the purposes of Part 5.
	Subsection (4) provides definitions for terms used in subsection (3).
Part 5: Enforcement of Labour Market Legislation Interpretation of this Part Section 151: Interpretation: general