Gavin Hales
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gmhales.bsky.social
Gavin Hales
@gmhales.bsky.social
Researching/discussing policing, crime and the criminal justice system. Senior Associate Fellow @policefoundationuk.bsky.social but my own views.

Based in London, UK.
If this is at all representative, ordinarily very few people arrested by the Met aren't already known by the police service www.whatdotheyknow.com/request/supe...
December 8, 2025 at 10:35 PM
Just put any links in a reply
December 8, 2025 at 10:27 PM
Reposted by Gavin Hales
Around 4/5 s60 stops over the last 2 years (83%) took place in the month of August, and 90% of those took place in Kensington & Chelsea or Westminster. That points to the use of s60 primarily being concerned with Carnival.
December 8, 2025 at 6:02 PM
Reposted by Gavin Hales
As I noted here, there is a generally high degree of agreement between SDE and EA data which suggests that at least for broad ethnic groups EA can be used fairly reliably in combination with SDE or even on its own to examine Qs like disproportionality. bsky.app/profile/gmha...
December 8, 2025 at 5:41 PM
Reposted by Gavin Hales
If you cross-tabulate the self-defined ethnicity (SDE) and ethnic appearance (EA) variables, you'll see that only 3.3% of s60 records have no EA recorded, and the gaps in SDE are almost all 'not stated', which means SDE was requested but not provided.
December 8, 2025 at 5:40 PM
Around 4/5 s60 stops over the last 2 years (83%) took place in the month of August, and 90% of those took place in Kensington & Chelsea or Westminster. That points to the use of s60 primarily being concerned with Carnival.
December 8, 2025 at 6:02 PM
As I noted here, there is a generally high degree of agreement between SDE and EA data which suggests that at least for broad ethnic groups EA can be used fairly reliably in combination with SDE or even on its own to examine Qs like disproportionality. bsky.app/profile/gmha...
December 8, 2025 at 5:41 PM
If you cross-tabulate the self-defined ethnicity (SDE) and ethnic appearance (EA) variables, you'll see that only 3.3% of s60 records have no EA recorded, and the gaps in SDE are almost all 'not stated', which means SDE was requested but not provided.
December 8, 2025 at 5:40 PM
Replication is always helpful, but these tests are independent of policing and the Home Office
December 6, 2025 at 10:10 PM
Positive outcomes are everything except NFA, so the NFS picture will be identical but inverted.

An issue you have in Durham is v small numbers of non-White residents and people stopped, which will make the Black and Asian data more volatile/noisy.
December 1, 2025 at 5:26 PM
'Black or Black British' (ditto Asian) is used to describe the wider grouping of Black ethnic identities, but Black British isn't offered as an option. That may mean that some people who would choose Black British choose Other Black instead.
December 1, 2025 at 8:40 AM
Interestingly, the MPS workforce data includes Black British and Asian British options. Relatively large numbers in the former. www.met.police.uk/police-force...
December 1, 2025 at 8:20 AM
What do the numbers of stops of Black people look like on a monthly basis? From the link above, 75 stops over 6 months is a tiny total.
November 30, 2025 at 7:38 PM