No. of drivers convicted of driving under the influence of alcohol/ drugs
No. of these drivers with a previous conviction for the same offence
% of drivers with a previous conviction for the same offence
No. of drivers convicted of driving under the influence of alcohol/ drugs
No. of these drivers with a previous conviction for the same offence
% of drivers with a previous conviction for the same offence
No. of drivers convicted of driving under the influence of alcohol/ drugs
No. of these drivers with a previous conviction for the same offence
% of drivers with a previous conviction for the same offence
Avon and Somerset
2,455
599
24.40
2,417
592
24.49
2,198
571
25.98
Bedfordshire
1,090
264
24.22
1,023
271
26.49
879
233
26.51
Cambridgeshire
1,286
272
21.15
1,231
274
22.26
1,064
259
24.34
Cheshire
1,900
430
22.63
1,884
443
23.51
1,630
368
22.58
City of London
181
25
13.81
195
38
19.49
145
27
18.62
Cleveland
1,007
204
20.26
945
238
25.19
980
236
24.08
Cumbria
838
153
18.26
845
163
19.29
739
162
21.92
Derbyshire
1,503
326
21.69
1,437
335
23.31
1,287
294
22.84
Devon and Cornwall
2,518
535
21.25
2,475
567
22.91
2,240
539
24.06
Dorset
1,228
274
22.31
1,205
293
24.32
1,048
240
22.90
Durham
955
243
25.45
1,004
259
25.80
929
233
25.08
Dyfed-Powys
891
200
22.45
878
186
21.18
795
202
25.41
Essex
2,663
615
23.09
2,523
591
23.42
2,382
583
24.48
Gloucestershire
831
197
23.71
828
204
24.64
797
182
22.84
Greater Manchester
4,328
1,049
24.24
4,297
1,083
25.20
3,861
924
23.93
Gwent
1,103
268
24.30
1,007
258
25.62
964
236
24.48
Hampshire
3,003
692
23.04
2,913
699
24.00
2,675
653
24.41
Hertfordshire
1,867
446
23.89
1,892
426
22.52
1,665
407
24.44
Humberside
1,550
340
21.94
1,410
353
25.04
1,360
296
21.76
Kent
2,769
661
23.87
2,842
637
22.41
2,496
623
24.96
Lancashire
2,703
636
23.53
2,684
598
22.28
2,441
571
23.39
Leicestershire
1,379
326
23.64
1,424
342
24.02
1,233
320
25.95
Lincolnshire
1,230
270
21.95
1,207
258
21.38
1,153
260
22.55
Merseyside
2,553
649
25.42
2,299
544
23.66
2,019
514
25.46
Metropolitan Police
12,578
2,720
21.63
11,850
2,686
22.67
11,263
2,721
24.16
Norfolk
1,310
299
22.82
1,249
309
24.74
1,061
257
24.22
North Wales
1,327
283
21.33
1,280
268
20.94
1,108
247
22.29
North Yorkshire
1,272
246
19.34
1,220
258
21.15
1,154
213
18.46
Northamptonshire
1,020
240
23.53
1,123
256
22.80
1,052
238
22.62
Northumbria
2,529
626
24.75
2,457
576
23.44
2,307
603
26.14
Nottinghamshire
1,658
404
24.37
1,617
363
22.45
1,495
355
23.75
South Wales
2,768
710
25.65
2,585
670
25.92
2,445
636
26.01
South Yorkshire
1,977
516
26.10
2,000
504
25.20
1,914
464
24.24
Staffordshire
1,666
350
21.01
1,729
396
22.90
1,671
366
21.90
Suffolk
1,098
245
22.31
1,010
205
20.30
884
220
24.89
Surrey
1,475
312
21.15
1,502
317
21.11
1,347
273
20.27
Sussex
2,473
531
21.47
2,454
612
24.94
2,138
494
23.11
Thames Valley
3,362
750
22.31
3,311
816
24.65
2,959
701
23.69
23 Nov 2009 : Column 45W
23 Nov 2009 : Column 46W
Warwickshire
884
183
20.70
966
225
23.29
821
206
25.09
West Mercia
1,921
407
21.19
1,928
444
23.03
1,688
410
24.29
West Midlands
5,440
1,457
26.78
5,311
1,471
27.70
4,574
1,338
29.25
West Yorkshire
3,568
811
22.73
3,276
866
26.43
2,951
782
26.50
Wiltshire
971
211
21.73
782
154
19.69
685
148
21.61
Grand total
91,128
20,975
23.02
88,515
21,048
23.78
80,497
19,605
24.35
(1) The data include a range of offences under the Road Traffic Act. They can be found in sections 4(1), 5(1)(a), 7(6), 4(2), 5(1) (b), 6(4) and 7A as amended by the Police Reform Act 2002 and the Transport and Works Act 2002.