'In essence, the Secretary of State and UKBA entrust to sponsors such as the claimant the vital function of monitoring compliance of its students with immigration law.' ii. 14. Mr Biggs submitted that although reasonable suspicion by the SSHD that a college might be in breach of its sponsor duties was enough to justify its suspension, the revocation of a licence required a reasonable (in the Wednesbury sense) belief that the college was in breach of its sponsor duties. On behalf of the SSHD, Mr Dunlop submitted that because of the high level of trust necessarily reposed in the sponsor, a reasonable suspicion that it was in breach of its duties leading to a breakdown in trust was sufficient to justify the revocation of its licence. However, the debate about the threshold test for revocation was academic because if, as in the present case, the college failed to provide sufficient evidence to allay a reasonable suspicion, it would necessarily crystallise into a reasonable belief. He further submitted that it sufficed to show that the SSHD had a reasonable belief that the college posed a risk to immigration control, even if it was compliant with all its sponsor duties. iii. 15. I agree with Mr Dunlop: the matter was put clearly by Silber J in the Westech College case (above) in the passage at [16]-[19]. That case is authority for the SSHD's entitlement to revoke a college's licence and HTS status if there are reasonable grounds for suspecting that a breach of immigration control might occur, or if there is a risk that the college might not be complying with its duties, provided that the SSHD (or the relevant agency) comply with their public law duties. In such cases the court, being a court of review, must apply the appropriate deference to the expertise and experience of the UK Border Agency ('