FOI 10757-25 AI technologies for lie detection

Request to Northamptonshire Police:

Q1. Over the past five years (27 May 2020 to 27 May 2025) has your force used any AI technologies for lie detection? Please answer yes or no.

If your force has not used any AI technologies for lie detection purposes please ignore the remaining questions.

Q2. When was AI technology for lie detection first used? Please share the month and year.

Q3. Is AI technology for lie detection currently used (as of 27 May 2025)? If not, please share the date it stopped being used and any reasons why it stopped being used.

Q4. Please share any training manuals related to AI technology for lie detection. If you need to redact or omit any of the information, please explain why and please note that time taken for redactions does not usually count towards the cost limit.

Q5. Has your force conducted an Equality Impact Assessment (EIA) for any AI technology for lie detection? Please disclose any EIA conducted. I understand these may be redacted but I ask that you redact only exempted information and justify the use of those exemptions, as above.

Response

No, Northamptonshire Police has not used any AI technologies for lie detection during the dates of 27 May 2020 to 27 May 2025.
As directed in your request, we have ignored your subsequent questions.

Every effort is made to ensure that the figures presented are accurate and complete. The figures provided therefore are our best interpretation of relevance of data to your request, but you should be aware that the collation of figures for ad hoc requests may have limitations and this should be taken into account when the data is used.

If you decide to write an article / use the enclosed data we would ask you to take into consideration the factors highlighted in this document so as to not mislead members of the public or official bodies or misrepresent the relevance of the whole or any part of this disclosed material.