Financial Intermediaries Act 1996

An inspector who enters a place with the occupier’s consent may seize a thing in the place if—

the inspector reasonably believes the thing is evidence of an offence against this Act; and

seizure of the thing is consistent with the purpose of entry as told to the occupier when asking for the occupier’s consent.

An inspector who enters a place with a warrant may seize the evidence for which the warrant was issued.

An inspector may also seize anything else at a place if the inspector reasonably believes—

the thing is evidence of an offence against this Act; and

the seizure is necessary to prevent the thing being hidden, lost, or destroyed or used to continue or repeat the offence.

Also, an inspector may seize a thing if the inspector reasonably believes it has just been used in committing an offence against this Act.