Data dictionary

variable	class	description
index	integer	The position of the local authority in the coordinate list used for extraction. Mainly used for debugging to check what index the code got to before it broke.
la_name	character	The name of the Local Authority District where the stop occurred
la_code	character	The code of the Local Authority District where the stop occurred
county	character	The county where the stop occurred
region	character	The region where the stop occurred
country	character	The country where the stop occurred
force	character	The name of the Police Force that serves the area where the stop occurred
date	Date	The date of the stop
time	character	The time of the stop.  Note that some forces only provide dates for their stop and searches, so you might see a disproportionate number of incidents occuring at midnight.
age_range	character	The age range of the person stopped at the time the stop occurred
gender	character	The gender of the person stopped
self_defined_ethnicity	character	The ethnicity of the person stopped, as reported by the person stopped
officer_defined_ethnicity	character	The ethnicity of the person stopped, as reported by the officer
object_of_search	character	What was searched for
legislation	character	The power used to carry out the stop and search
outcome	character	The outcome of the stop. false if nothing was found, an empty string if no outcome was provided.
location.longitude	character	Approximate longitude of where the stop was made. This is an anonymised - see https://data.police.uk/about/#location-anonymisation
location.latitude	character	Approximate latitude of where the stop was made. This is an anonymised - see https://data.police.uk/about/#location-anonymisation
location.street.id	character	Unique identifier for the location. This is an anonymised - see https://data.police.uk/about/#location-anonymisation
location.street.name	character	Name of the location. This is an anonymised - see https://data.police.uk/about/#location-anonymisation
involved_person	character	Whether a person was searched in this incident (derived from type; true if anything but 'Vehicle search')
outcome_linked_to_object_of_search	character	Whether the outcome was related to the reason the stop and search was carried out, as a boolean value (or null if not provided)
removal_of_more_than_outer_clothing	character	Whether the person searched had more than their outer clothing removed, as a boolean value (or null if not provided)
type	character	Whether this was a 'Person search', a 'Vehicle search', or a 'Person and Vehicle search'
coord_set	integer	The coordinate subset of the LAD for this stop. Some LADs are comprised of multiple polygons (e.g., areas with islands), which are searched independently.
operation	character	Whether this stop and search was part of a policing operation
number_months_acquired	numeric	The number of months of stop records acquired for this LAD. Some months for some areas may not have recorded data. This variable tracks how many months have been acquired for this LAD.
proportion_months_acquired	numeric	The number of months of stop records acquired for this LAD as a proportion of the total number of months requested. Some months for some areas may not have recorded data. This variable tracks what proportion of the requested months have been acquired for this LAD.