336.This section provides for the Secretary of State, where he has reasonable suspicion that a person has committed a specified immigration offence, including an offence in relation to earnings under the national asylum support arrangements, to require that person’s employer to disclose information about that person’s whereabouts, earnings or employment history. The provision applies to employers and to employment agencies hiring out the services of staff, whether those staff are self-employed, employed by the employment agency, or employed by a third party employer.