Sch 3 para 17
(1) A person may provide any of the following in response to a request for assistance, and a direction may require the provision of any of the following— (a) equipment; (b) NCA officers (if assistance is to be provided by the Director General); (c) constables (if assistance is to be provided by the chief officer of a police force); (d) members of staff of a UK law enforcement agency (if assistance is to be provided by such an agency). (2) That does not limit the kinds of assistance that may be provided or required. (3) In this paragraph— “ direction ” means a direction under any provision of this Part of this Schedule; “ request for assistance ” means such a request under any provision of this Part of this Schedule.