Mutual aid for policing from other forces in August 2025

Freedom of information request reference no: 01.FOI.25.046832

I note you seek access to the following information:

Mutual aid forces for Parliament Square (9 Aug 2025).
For 9 Aug 2025 and related Palestine Action operations (5 July–16 Aug 2025):
The list of contributing forces providing mutual aid (by force), and for each, the number of officers/PSUs deployed.

Any Met situation report or post-event summary noting mutual aid contributions (names may be redacted).

Whether Sussex Police provided officers, and if so, numbers/roles/dates.

Note: The Met has publicly stated it brought in officers from elsewhere in the country; this request seeks the specific breakdown.

Decision

I have today decided to disclose some of the relevant located information
Please find the answers to questions Question One (1) and Three (3).

Reason for decision

In respect of Question Two (2), the MPS is required to exempt information held as the following exemptions are engaged;

Section 30(1)(a) (Investigations)

Disclosure

Q1 - For 9 Aug 2025 and related Palestine Action operations (5 July–16 Aug 2025): The list of contributing forces providing mutual aid (by force), and for each, the number of officers/PSUs deployed.

The MPS answer to this question is below;

There was only one mutual aid request during the requested period and so the only day where 117 officers were deployed was 9 August 2025.

South Wales - 17 (1-2-14)
Dyfed Powys - 16 (0-2-14)
Gwent - 16 (0-2-14)
S Yorks - 9 (1-1-7)
Humberside - 8 (0-1-7)
Cheshire - 9 (1-1-7)
Lancs - 8 (0-1-7)
GMP - 8 (0-1-7)
Cleveland - 9 (1-1-7)
Durham - 16 (0-2-14)

Please note the numbers in brackets represent the number of Inspectors, Sergeants and Constables supplied by that force on this deployment.

Q3 - Whether Sussex Police provided officers, and if so, numbers/roles/dates.

Sussex Police did not provide officers.