Roadside drug testing 576/2026

FOI Reference: 576/2026

Request:

Please provide the following information for each of the financial years 2023/24, 2024/25, and 2025/26 (year to date):

1. The total number of roadside oral fluid drug screening tests conducted by Dyfed-Powys Police.
2. The number of those tests that returned a positive indication for THC (cannabis).
3. The make, model, and manufacturer of the roadside oral fluid drug screening device(s) currently in use by Dyfed-Powys Police, and the THC detection threshold (cutoff level in ng/mL) for each device.
4. The number of THC-positive roadside screening results that were subsequently confirmed by laboratory analysis (evidential testing), and the number that were not confirmed.
5. The number of THC-positive cases that resulted in: (a) charge or summons, (b) no further action (NFA), or (c) any other disposal.
6. Whether Dyfed-Powys Police has received any complaints, representations, or correspondence from individuals who attributed a positive THC result to: (a) the use of legal, over-the-counter CBD products, or (b) passive exposure to cannabis smoke. If so, please provide the number of such complaints or representations received in each year.
7. Whether Dyfed-Powys Police has any written guidance, policy, or standard operating procedure that addresses: (a) the possibility of legal CBD products causing a positive THC indication on roadside screening devices, or (b) the interpretation of low-level positive THC results in the context of passive smoke exposure. If such guidance exists, please provide a copy.

Response 1, 2, 4, 5 & 7:

I can confirm that Dyfed-Powys Police does not hold the information requested, due to the fact that this information is not recorded by Dyfed-Powys Police.

Response 3:

I can confirm that Dyfed-Powys Police does hold some of the information requested, as outlined below.

Drug Wipe 3S supplied by DTEC International.

Please note that we do not have the THC detection threshold information recorded.

Response 6:

I can confirm that Dyfed-Powys Police does hold the information requested, as outlined below.

0.

This is a response under the Freedom of Information Act 2000 and disclosed on 26/06/2026.