A person commits an offence if the person resists or wilfully obstructs an immigration officer who is acting in the exercise of a relevant power.
A person guilty of an offence under this section is liable—
In this section "relevant power" means a power exercisable under—
The power conferred by subsection (5) of section 28A of the Immigration Act 1971 (arrest without warrant) applies in relation to an offence under this section as it applies in relation to an offence under section 26(1)(g) of that Act (and subsections (6) to (9), (10) and (11) of section 28A of that Act apply accordingly).
In relation to an offence committed before the coming into force of section 281(5) of the Criminal Justice Act 2003 (alteration of penalties for certain summary offences: England and Wales) the reference in subsection (2)(a) to 51 weeks is to be read as a reference to 1 month.