48Grants for expenditure on safeguarding national security
(1)The Secretary of State may make grants in respect of expenditure incurred (or to be incurred) for police purposes by—
(a)police authorities for areas other than the metropolitan police district, and
(b)the Receiver for the Metropolitan Police District,
in connection with safeguarding national security.
(2)Grants under this section may be made either unconditionally or subject to conditions.
(3)The Secretary of State shall exercise his powers under this section only with the approval of the Treasury.