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Driving Under Influence

Answer

The figures requested are shown in the following tables. The latest published year is 2007. Figures for tests failed and refusals are combined as they are not reported separately to the Home Office.

Number of breath tests carried out, by police force area, 1998 to 2007
Police force area	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007
Avon and Somerset	19,695	19,247	15,805	15372	15,140	24,492	27,297	21,928	15,779	15,655
Bedfordshire	5,295	2,886	3,262	4,212	6,150	6,633	7,764	6,704	3,093	2,578
Cambridgeshire	17,800	13,600	12,800	12,700	13,000	12,300	12,300	12,500	12,500	12,000
Cheshire	23,315	20,505	15,800	13,586	12,224	11,854	20,155	22,005	35,747	32,210
Cleveland	34,181	28,601	18,818	14,054	10,995	8,716	8,056	10,826	11,308	10,140
Cumbria	9,361	7,083	6,076	5,089	4,694	5,513	8,430	13,577	13,804	16,217
Derbyshire	35,684	49,237	52,001	42,147	37,931	32,570	31,023	17,685	16,019	15,873
Devon and Cornwall	15,695	14,731	12,977	13,478	12,618	10,914	10,690	10,423	13,562	16,687
Dorset	10,056	9,203	12,298	10,424	10,431	8,464	6,938	7,917	8,706	8,038
Durham	7,350	12,668	15,306	16,322	9,535	7,558	6,080	7,734	6,945	8,160
Dyfed-Powys	9,232	9,922	7,381	7,008	7,344	5,982	6,686	6,917	7,291	9,429
Essex	28,358	24,077	27,179	18,851	16,139	15,481	25,337	34,249	28,436	25,946
Gloucestershire	9,335	8,330	8,202	9,646	9,339	8,647	7,144	9,122	10,090	8,262
Greater Manchester	31,175	21,479	27,300	23,939	23,200	20,900	19,900	18,900	18,100	18,025
Gwent	11,211	10,639	10,133	6,428	3,784	2,794	1,632	1,957	1,702	2,374
Hampshire	27,348	31,552	35,243	35,189	35,219	37,529	38,399	38,323	34,772	26,208
Hertfordshire	8,147	6,959	5,963	5,460	4,289	4,011	7,289	11,900	12,693	12,030
Humberside	8,284	8,057	9,371	7,477	8,714	6,545	5,619	5,717	10,009	11,885
Kent	27,528	32,706	32,189	32,229	34,165	24,553	32,019	31,187	31,684	28,629
Lancashire	20,283	19,075	15,542	10,016	10,562	7,981	10,204	12,990	16,359	19,158
Leicestershire	20,161	21,127	18,751	14,891	14,526	12,007	15,799	14,419	9,980	6,644
Lincolnshire	25,917	20,998	12,101	13,593	9,013	12,076	11,310	11,431	10,581	14,722
London, City of	3,309	1,746	1,056	1,085	1,413	1,237	683	1,117	1,553	1,375
Merseyside	18,671	18,619	12,787	7,169	6,952	7,722	5,019	8,003	10,642	12,829
Metropolitan Police	111,448	99,832	93,807	65,084	57,206	55,993	61,535	67,461	65,025	66,919
Norfolk	12,419	11,641	9,074	9,096	5,304	4,030	4,805	10,367	7,844	6,366
North Wales	15,236	15,862	14,960	15,141	19,597	17,337	24,177	21,812	19,597	23,034
North Yorkshire	9,911	8,090	6,731	7,431	7,284	8,254	8,589	9,339	10,129	10,526
Northamptonshire	4,664	5,333	5,799	4,539	3,343	3,126	3,200	5,196	4,259	4,076
Northumbria	12,183	12,496	12,727	12,368	11,796	11,123	9,776	9,301	7,992	7,392
Nottinghamshire	8,880	8,361	8,382	7,682	5,799	7,146	8,241	7,923	7,172	7,250
South Wales	24,886	20,674	17,772	19,329	17,496	16,863	16,733	16,269	17,087	19,013
South Yorkshire	12,614	16,094	19,243	18,017	14,414	12,117	6,494	13,689	10,267	11,390
Staffordshire	15,428	10,148	7,706	4,706	5,261	5,073	13,666	14,322	12,723	12,369
Suffolk	15,636	15,134	9,159	8,588	8,868	11,566	10,569	8,854	9,059	10,435
Surrey	11,364	11,696	12,393	13,311	7,504	8,858	9,484	9,605	8,278	6,915
Sussex	17,395	17,885	20,845	21,805	17,297	17,150	15,210	17,983	18,742	16,805
Thames Valley	34,151	30,273	30,824	26,158	25,308	16,049	15,363	14,629	13,538	14,850
Warwickshire	8,661	8,604	7,057	5,828	5,068	5,848	5,496	4,820	4,458	4,877
West Mercia	19,090	12,340	8,930	9,070	8,215	6,289	7,991	8,833	11,267	10,438
West Midlands	24,099	21,324	16,221	12,203	10,510	10,960	6,579	6,900	6,229	5,611
West Yorkshire	22,894	18,807	18,278	17,219	16,739	14,157	16,921	15,367	18,011	18,724
Wiltshire	7,118	6,841	6,501	5,941	5,850	5,867	7,398	7,167	8,708	7,688
England and Wales	815,468	764,482	714,750	623,881	570,236	534,285	578,000	607,368	601,740	599,752
Note:
Figures do not always match those in each year's breath test statistics publication, due to subsequent amendments being incorporated.

Number of breath tests passed¹, by police force area, 1998 to 2007
Police force area	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007
Avon and Somerset	16,646	16,032	12,761	12,502	12,096	21,195	24,269	18,746	13,044	13,210
Bedfordshire	4,451	2,116	2,543	3,500	5,269	5,517	6,621	5,762	2,162	1,518
Cambridgeshire	16,527	12,458	11,707	11,591	11,714	11,041	11,045	11,187	11,037	10,595
Cheshire	21,733	18,856	13,330	11,017	9,802	9,459	17,725	20,048	33,548	30,164
Cleveland	33,262	27,754	18,020	13,209	10,215	7,626	7,382	10,094	10,484	9,517
Cumbria	8,571	6,522	5,477	4,350	4,157	4,865	7,747	12,758	13,011	15,406
Derbyshire	33,891	47,382	50,324	40,562	36,262	30,893	28,894	16,360	14,892	14,877
Devon and Cornwall	13,466	12,046	10,369	10,697	9,677	7,955	7,887	7,851	10,945	14,443
Dorset	8,545	7,926	10,914	8,852	8,853	6,756	5,255	6,109	6,823	6,210
Durham	6,137	11,731	14,290	15,237	8,429	6,423	4,869	6,661	5,890	7,191
Dyfed-Powys	8,131	8,904	6,538	6,071	6,311	4,894	5,625	5,922	6,309	8,542
Essex	25,659	21,349	24,751	16,242	13,452	12,727	22,354	31,536	25,648	23,437
Gloucestershire	8,005	7,036	6,827	8,209	7,811	7,215	5,863	7,804	8,565	6,908
Greater Manchester	24,749	16,680	18,767	16,179	15,800	13,800	13,600	13,500	12,790	12,800
Gwent	10,112	9,594	9,120	5,179	2,667	1,530	377	753	422	1,291
Hampshire	23,647	27,795	31,578	31,293	31,226	33,532	34,597	34,046	31,051	21,695
Hertfordshire	6,172	5,076	3,973	3,376	2,254	1,936	5,261	10,032	10,827	10,146
Humberside	6,756	6,848	8,125	6,363	7,535	5,003	4,912	4,979	8,448	10,833
Kent	24,448	29,234	29,190	29,078	31,178	21,570	28,841	29,012	29,447	26,876
Lancashire	18,373	17,221	13,942	7,548	9,102	5,099	7,308	10,129	13,410	16,471
Leicestershire	17,883	19,128	16,709	12,733	12,144	9,727	13,577	12,465	8,121	4,746
Lincolnshire	24,991	20,137	11,318	12,903	8,158	11,011	10,372	10,436	9,420	13,621
London, City of	2,840	1,448	814	802	1,126	998	547	933	1,303	1,166
Merseyside	16,179	16,382	10,587	5,038	4,649	5,423	2,738	5,913	8,676	10,898
Metropolitan Police	96,642	88,476	84,035	53,003	43,458	39,944	45,816	50,784	46,578	49,646
Norfolk	11,525	10,805	8,316	7,931	4,366	2,822	3,816	9,321	6,455	5,163
North Wales	13,719	14,319	13,388	13,746	18,107	15,974	22,743	20,442	18,455	21,313
North Yorkshire	8,431	6,766	5,589	6,294	6,109	7,085	7,095	7,917	8,846	9,246
Northamptonshire	3,462	4,082	4,360	3,132	2,027	1,861	1,985	4,063	2,931	2,755
Northumbria	8,950	8,974	9,294	9,013	8,787	8,543	7,592	6,669	5,355	5,001
Nottinghamshire	6,503	5,917	6,025	5,370	3,674	4,690	5,733	5,478	4,852	4,992
South Wales	21,685	17,980	15,097	16,275	14,591	13,860	13,713	13,284	14,305	16,538
South Yorkshire	10,944	14,102	17,045	16,073	12,396	10,324	4,075	9,977	7,413	8,768
Staffordshire	13,328	8,330	6,492	3,080	3,450	3,224	11,774	12,452	10,917	10,688
Suffolk	14,458	14,019	8,352	7,632	7,833	10,234	9,372	7,837	8,054	9,645
Surrey	10,096	10,102	10,826	11,792	6,386	7,917	8,417	8,562	7,408	6,214
Sussex	15,431	15,938	19,050	19,665	15,486	15,158	13,017	15,752	16,519	15,010
Thames Valley	29,194	25,363	25,508	21,464	17,618	9,746	11,398	8,756	9,717	11,362
Warwickshire	7,785	7,591	6,119	4,890	4,137	4,983	4,758	4,035	3,869	4,456
West Mercia	17,565	10,791	6,717	6,820	5,966	3,870	5,561	6,137	8,762	8,261
West Midlands	17,999	16,111	12,268	7,548	5,470	6,195	1,749	1,981	1,645	1,388
West Yorkshire	18,202	14,947	14,158	13,255	12,247	10,594	12,633	10,681	12,083	12,297
Wiltshire	6,036	5,830	5,514	4,819	4,765	4,717	6,067	5,920	7,573	6,858
England and Wales	713,129	670,098	620,127	524,333	466,760	427,936	474,980	503,084	498,010	502,162
¹ Figures derived by subtracting numbers of positive/refused from total tests conducted.
Note:
Figures do not always match those in each year's breath test statistics publication, due to subsequent amendments being incorporated.

Number of breath tests positive or refused¹, by police force area, 1998 to 2007
Police force area	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007
Avon and Somerset	3,049	3,215	3,044	2,870	3,044	3,297	3,028	3,182	2,735	2,445
Bedfordshire	844	770	719	712	881	1,116	1,143	942	931	1,060
Cambridgeshire	1,273	1,142	1,093	1,109	1,286	1,259	1,255	1,313	1,463	1,405
Cheshire	1,582	1,649	2,470	2,569	2,422	2,395	2,430	1,957	2,199	2,046
Cleveland	919	847	798	845	780	1,090	674	732	824	623
Cumbria	790	561	599	739	537	648	683	819	793	811
Derbyshire	1,793	1,855	1,677	1,585	1,669	1,677	2,129	1,325	1,127	996
Devon and Cornwall	2,229	2,685	2,608	2,781	2,941	2,959	2,803	2,572	2,617	2,244
Dorset	1,511	1,277	1,384	1,572	1,578	1,708	1,683	1,808	1,883	1,828
Durham	1,213	937	1,016	1,085	1,106	1,135	1,211	1,073	1,055	969
Dyfed-Powys	1,101	1,018	843	937	1,033	1,088	1,061	995	982	887
Essex	2,699	2,728	2,428	2,609	2,687	2,754	2,983	2,713	2,788	2,509
Gloucestershire	1,330	1,294	1,375	1,437	1,528	1,432	1,281	1,318	1,525	1,354
Greater Manchester	6,426	4,799	8,533	7,760	7,400	7,100	6,300	5,400	5,310	5,225
Gwent	1,099	1,045	1,013	1,249	1,117	1,264	1,255	1,204	1,280	1,083
Hampshire	3,701	3,757	3,665	3,896	3,993	3,997	3,802	4,277	3,721	4,513
Hertfordshire	1,975	1,883	1,990	2,084	2,035	2,075	2,028	1,868	1,866	1,884
Humberside	1,528	1,209	1,246	1,114	1,179	1,542	707	738	1,561	1,052
Kent	3,080	3,472	2,999	3,151	2,987	2,983	3,178	2,175	2,237	1,753
Lancashire	1,910	1,854	1,600	2,468	1,460	2,882	2,896	2,861	2,949	2,687
Leicestershire	2,278	1,999	2,042	2,158	2,382	2,280	2,222	1,954	1,859	1,898
Lincolnshire	926	861	783	690	855	1,065	938	995	1,161	1,101
London, City of	469	298	242	283	287	239	136	184	250	209
Merseyside	2,492	2,237	2,200	2,131	2,303	2,299	2,281	2,090	1,966	1,931
Metropolitan Police	14,806	11,356	9,772	12,081	13,748	16,049	15,719	16,677	18,447	17,273
Norfolk	894	836	758	1,165	938	1,208	989	1,046	1,389	1,203
North Wales	1,517	1,543	1,572	1,395	1,490	1,363	1,434	1,370	1,142	1,721
North Yorkshire	1,480	1,324	1,142	1,137	1,175	1,169	1,494	1,422	1,283	1,280
Northamptonshire	1,202	1,251	1,439	1,407	1,316	1,265	1,215	1,133	1,328	1,321
Northumbria	3,233	3,522	3,433	3,355	3,009	2,580	2,184	2,632	2,637	2,391
Nottinghamshire	2,377	2,444	2,357	2,312	2,125	2,456	2,508	2,445	2,320	2,258
South Wales	3,201	2,694	2,675	3,054	2,905	3,003	3,020	2,985	2,782	2,475
South Yorkshire	1,670	1,992	2,198	1,944	2,018	1,793	2,419	3,712	2,854	2,622
Staffordshire	2,100	1,818	1,214	1,626	1,811	1,849	1,892	1,870	1,806	1,681
Suffolk	1,178	1,115	807	956	1,035	1,332	1,197	1,017	1,005	790
Surrey	1,268	1,594	1,567	1,519	1,118	941	1,067	1,043	870	701
Sussex	1,964	1,947	1,795	2,140	1,811	1,992	2,193	2,231	2,223	1,795
Thames Valley	4,957	4,910	5,316	4,694	7,690	6,303	3,965	5,873	3,821	3,488
Warwickshire	876	1,013	938	938	931	865	738	785	589	421
West Mercia	1,525	1,549	2,213	2,250	2,249	2,419	2,430	2,696	2,505	2,177
West Midlands	6,100	5,213	3,953	4,655	5,040	4,765	4,830	4,919	4,584	4,223
West Yorkshire	4,692	3,860	4,120	3,964	4,492	3,563	4,288	4,686	5,928	6,427
Wiltshire	1,082	1,011	987	1,122	1,085	1,150	1,331	1,247	1,135	830
England and Wales	102,339	94,384	94,623	99,548	103,476	106,349	103,020	104,284	103,730	97,590
¹ Separate figures for positive (failed) and refused not collected.
Note:
Figures do not always match those in each year's breath test statistics publication, due to subsequent amendments being incorporated.

Secondary information

Type

Written question

Reference

506 c436-42W; 317949

Session

2009-10

Subjects

Breathalysers Driving under influence

Contains statistics

Yes

Link

View this Written question on www.publications.parliament.uk