Roadside breath tests

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Freedom of Information (FOI) Act request ref: 01/FIN/25/003517/D

Version Date: 20/08/2025

The Performance Analysis Department has provided the following information.

Data Source:

Monthly breath test update - Last updated 08/07/2025

The total number of roadside breath tests conducted in each of the past three calendar years (2022, 2023, 2024, and 2025 so far if available), broken down by month or quarter if possible.

The number of drivers who tested positive or failed a breath test in each of those years.

If available, a breakdown of breath tests conducted by local authority area, town, or policing sector within your jurisdiction.

Section	2022	2023	2024	2025	Grand Total
Bmth North	28	32	71	60	191
Bmth South	272	364	221	206	1063
Poole	341	297	432	270	1340
Christchurch	184	118	36	5	343
Bridport	206	150	77	59	492
Dorchester	225	306	212	116	859
Weymouth & Portland	206	199	196	150	751
East Dorset	305	415	405	199	1324
North Dorset	213	240	176	120	749
Purbeck	223	166	123	54	566
Dog Section	30	43	23	34	130
Firearms	148	235	116		499
FSG Weymouth	10	34	24		68
Learning & Development Unit			14	163	177
Ops		1			1
Other	103	110	70		283
Professional Development Unit (PDU) Blandford	2	7	10	1	20
PDU Bmth/Poole	213	332	81		626
Roads Policing Unit			367	482	849
Rural Crime Team			2		2
Traffic Unit East	1017	1058	562		2637
Traffic Unit West	597	399	235		1231
Not Listed		12			12
Grand Total	4323	4518	3453	1919	14,213

The top 5 locations (towns/areas/postcodes) where the highest number of drink driving offences were recorded over the past three years.

Information not held, the only information heldregarding location is as above for question 3.
Any available demographic breakdown (e.g. age group and gender) for individuals who:
o Were stopped and breathalysed, and

o Failed a breath test or were charged with a drink driving offence,
in the above time period.