True recognition rate (TRR)
A term from the College of Policing Authorised Professional Practice (APP), reproduced under the Open Government Licence with a link back to the authoritative source.
Definition
The number of times individuals on a watchlist are correctly identified as a proportion of the total number of times these individuals passed through the zone of recognition.
This definition is drawn from the College of Policing Authorised Professional Practice. For the full operational guidance and current wording, read it at source.
Related terms
False alert rate (FAR)
The number of individuals not on the watchlist who generate a false alert as a proportion of the total number of people who pass through the zone of recognition.
Recognition time (RT)
The average time taken between a subject on the watchlist passing before a camera and the generation of an alert.
Definition reproduced from the College of Policing Authorised Professional Practice under the Open Government Licence v3.0. See the source link above for the authoritative, current wording.