exercise powers under Schedule 2 of the Immigration Act 1971, while inland immigration officers work under S28A-H of the Immigration Act 1971 and paragraph 17 of Schedule 2 of the same Act, as do arrest-trained Border Force immigration officers at the frontier.

Historically, port and inland immigration officers received different training to reflect these different approaches to immigration enforcement, which is now reinforced by inland officers working for Immigration Enforcement, a separate