A restraint order may include provision authorising the detention of any property to which it applies if the property—
is seized by an appropriate officer under a relevant seizure power, or
is produced to an appropriate officer in compliance with a production order under section 345.
Provision under subsection (1) may, in particular—
relate to specified property, to property of a specified description or to all property to which the restraint order applies;
relate to property that has already been seized or produced or to property that may be seized or produced in future.
"Appropriate officer" means—
an accredited financial investigator;
a constable;
an officer of Revenue and Customs;
an immigration officer;
a National Crime Agency officer,
a member of staff of the relevant director (within the meaning of section 352(5A)).
"Relevant seizure power" means a power to seize property which is conferred by or by virtue of—
section 47C,
section 352, or
Part 2 or 3 of the Police and Criminal Evidence Act 1984 (including as applied by order under section 114(2) of that Act).
The Secretary of State may by order amend the definition of "relevant seizure power".