Part 4: Police Powers Chapter 5: Maritime Enforcement: English and Welsh Offences Section 90: Power of arrest and seizure
Subsections (1) and (2) provides a power of arrest to a law enforcement officer. An arrest may be made when the officer has reasonable grounds to suspect that an offence has been committed on a ship upon which the maritime enforcement powers are exercisable.
	Subsection (3) allows a law enforcement officer to seize and retain anything which appears to be evidence of that offence, with the exception of any items believed to be subject to legal privilege. Such items are items as defined by section 10 of PACE as items that relate to communications between a professional legal adviser and his or her client, or any person representing his or her client.
	Subsection (4) provides for the powers set out in subsection (2) or (3) to be exercisable on the ship "or elsewhere". "Elsewhere" is included for the same reason as in section 89 (see above).