Transparency data

Data: Drug Testing on Arrest (DToA) programme (accessible)

Updated 21 August 2024

These data tables were published on 21 August 2024, presenting Drug Testing on Arrest programme data for the period March 2022 to March 2024.

Data is provided by police forces in England and Wales in receipt of Drug Testing on Arrest funding from the Home Office.

For further information about the Drug Testing on Arrest programme data, please contact dtoa.datacollection@homeoffice.gov.uk.

Table 1: Number of reported total tests and positive tests for the period March 2022 to March 2024

Mar 2022 Apr 2022 to June 2022 July 2022 to Sept 2022 Oct 2022 to Dec 2022 Jan 2023 to Mar 2023 Apr 2023 to June 2023 July 2023 to Sept 2023 Oct 2023 to Dec 2023 Jan 2024 to March 2024 Total Mar 2022 to Mar 2024
Total reported tests 3,599 10,393 10,565 11,129 12,217 15,720 16,887 18,091 19,224 117,825
Total reported positive tests 1,874 5,577 5,883 6,104 6,606 8,846 9,718 10,342 10,688 65,638
Positive test rate 52% 54% 56% 55% 54% 56% 58% 57% 56% 56%
Average number of police forces returning data in the period 14 16 17 18 18 27 29 30 29  

Table 2: Number of reported drug tests for the period March 2023 to March 2024, by trigger or non-trigger offence

Mar 2023 Apr 2023 to June 2023 July 2023 to Sept 2023 Oct 2023 to Dec 2023 Jan 2024 to Mar 2024 Total Mar 2023 to Mar 2024
Tests following a trigger offence 3,025 10,233 12,405 14,508 15,970 56,141
Tests following a non-trigger offence 407 1,695 1,745 2,184 2,242 8,273
Not stated 1,335 3,792 2,737 1,399 1,012 10,275
Total 4,767 15,720 16,887 18,091 19,224 74,689
Average number of police forces returning data in the period 23 27 29 30 29  

Table 3: Number of reported total and positive tests for the period March 2023 to March 2024, by substance

Mar 2023 Apr 2023 to June 2023 July 2023 to Sept 2023 Oct 2023 to Dec 2023 Jan 2024 to Mar 2024 Total Mar 2023 to Mar 2024
Total positive tests 2,597 8,846 9,718 10,342 10,688 42,191
Of which: Positive for cocaine 1,335 4,739 5,379 6,360 6,557 24,370
Positive for opiates 85 313 316 401 416 1,531
Positive for both cocaine and opiates 732 2,567 2,714 3,581 3,715 13,309
Positive (specific substance not provided) 445 1,227 1,309 - - 2,981
Total negative tests 1,597 5,215 5,714 7,316 8,209 28,051
Test result not stated 509 1,455 1,223 49 34 3,270
Test refused or unable to test 64 204 232 384 293 1,177
Total number of reported tests 4,767 15,720 16,887 18,091 19,224 74,689
Average number of police forces returning data in the period 23 27 29 30 29  

Table 4: Where available, number of reported referrals into assessment following a positive test for the period March 2023 to March 2024

These figures are based on optional referrals data provided for a small sample of tests.

Mar 2023 Apr 2023 to June 2023 July 2023 to Sept 2023 Oct 2023 to Dec 2023 Jan 2024 to Mar 2024 Total Mar 2023 to Mar 2024
Total positive tests 2,597 8,846 9,718 10,342 10,688 42,191
Total positive tests with referrals data available 867 3,692 5,337 6,283 6,842 23,021
Referral to assessment made 789 3,308 4,956 5,706 6,256 21,015
Referral rate 91% 90% 93% 91% 91% 91%
Average number of police forces returning data in the period 23 27 29 30 29  

Table 5: Where available, number of reported referrals into treatment made following a referral to assessment for the period March 2023 to March 2024

These figures are based on optional referrals data provided for a small sample of tests.

Mar 2023 Apr 2023 to June 2023 July 2023 to Sept 2023 Oct 2023 to Dec 2023 Jan 2024 to Mar 2024 Total Mar 2023 to Mar 2024
Reported completed assessments, where onwards treatment referral data is provided 163 442 1,144 1,245 1,366 4,360
Referral to treatment made, following referral to assesment 37 123 689 657 717 2,223
Referral rate 23% 28% 60% 53% 52% 51%
Average number of police forces returning data in the period 10 15 20 22 22  

Notes

  1. Prior to March 2023, data returns were provided by police forces on an aggregate basis and not all police forces provided complete data each month. Since March 2023, improvements have been made to the data return and more police forces now provide data on a more consistent basis. Since March 2023, data is now provided by police forces to the Home Office at the individual test record level.

  2. Different police forces have returned data in different periods during the data collection and therefore these figures should not be treated as a complete reflection of all testing activity.

  3. Table 1 presents data from March 2022 onwards, whilst tables 2-5 begin at March 2023 when more detailed outcomes data became available.

  4. March 2022 was the month by which all 2021/22 Home Office funding had been provided to police forces. It is therefore included before the subsequent quarters for completeness in Table 1. Similarly, the new data returns process commenced in March 2023, which is therefore included for completeness before the subsequent quarters in Tables 2-5.

  5. Data relates to the number of tests conducted, rather than the number of individuals tested. This is because the same individuals may be repeatedly tested.

  6. Drug tests can be conducted following a trigger offence, or with an Inspector’s Authority following a non-trigger offence. Trigger offences are predominantly acquisitive crimes, such as burglary, robbery, and taking a motor vehicle without authority.

  7. At present, individuals can be tested for the presence of cocaine or certain opiates only. Table 3 presents the results of drug tests by substance found.

  8. Referrals data is currently optional for police forces to provide. Therefore the referral figures presented in Tables 4 and 5 are based on a small sample of overall test records provided by police forces and the referral rates should be treated as indicative only.

  9. Data is collected by the Home Office on a monthly basis, and police forces occasionally update their previous returns. Therefore the figures may not match those previously published.