The data on arrests collected by the Ministry of Justice do not include information on the outcomes in court of those arrests.
Information is available on convictions and custodial sentences for driving under the influence of alcohol or drugs by police force area from 1997 to 2005. This is provided in the following tables. 2006 data will be available later this year.
The data provided cover both drink and drugs offences.
Number of offences 1997 1998 1999 Police force area Findings of guilt Immediate custody2 Findings of guilt Immediate custody2 Findings of guilt Immediate custody2 Avon and Somerset 2,812 163 2,566 157 2,728 165 Bedfordshire 1,146 119 1,060 96 869 87 Cambridgeshire 1,092 56 1,060 62 941 43 Cheshire 1,969 97 1,903 119 1,827 133 Cleveland 926 61 870 63 811 57 Cumbria 931 49 856 51 871 37 Derbyshire 1,612 147 1,547 202 1,463 181 Devon and Cornwall 2,342 91 2,265 127 2,277 112 Dorset 1,214 93 1,186 88 1,120 96 Durham 1,044 66 1,035 53 1,137 81 Essex 2,736 228 2,438 233 2,528 261 Gloucestershire 1,067 48 985 36 889 51 Greater Manchester 4,806 440 4,715 453 4,850 464 Hampshire 3,774 243 3,597 231 3,725 213 Hertfordshire 1,670 90 1,672 91 1,679 90 Humberside 1,274 76 1,358 87 1,323 97 Kent 2,321 97 2,627 155 2,633 133 Lancashire 3,389 224 2,945 178 3,010 184 Leicestershire 1,648 183 1,485 140 1,624 188 Lincolnshire 1,088 47 979 36 941 44 London, City of 436 8 301 9 236 5 Merseyside 2,719 304 2,451 326 2,137 296 Metropolitan Police 16,165 1,270 13,889 1,050 12,414 838 Norfolk 1,116 49 1,118 43 1,010 64 Northamptonshire 1,107 109 1,062 73 1,058 91 Northumbria 2,625 184 2,457 194 2,463 229 North Yorkshire 1,365 77 1,205 77 1,124 60 Nottinghamshire 2,031 255 1,804 247 1,802 262 South Yorkshire 2,296 204 2,002 178 1,927 149 Staffordshire3 2,036 132 1,955 140 1,711 143 Suffolk 1,050 53 1,042 60 1,089 71 Surrey 1,380 64 1,328 58 1,417 47 Sussex 2,373 110 2,113 113 2,224 120 Thames Valley 4,070 215 3,896 195 3,725 216 Warwickshire 837 44 784 53 856 38 West Mercia 1,947 87 1,794 97 1,747 114 West Midlands 6,351 598 5,582 532 4,775 532 West Yorkshire 3,953 394 3,669 329 3,597 358 Wiltshire 1,043 27 1,108 39 1,009 45 England 93,761 6,802 86,709 6,471 83,567 6,395 Dyfed Powys 1,029 44 995 38 944 48 Gwent 1,166 61 1,203 84 1,079 78 North Wales 1,354 96 1,306 95 1,248 94 South Wales 2,892 257 2,903 239 2,526 282 Wales 6,441 458 6,407 456 5,797 502 England and Wales 100,202 7,260 93,116 6,927 89,364 6,897
2000 2001 2002 Police force area Findings of guilt Immediate custody2 Findings of guilt Immediate custody2 Findings of guilt Immediate custody2 Avon and Somerset 2,462 152 2,197 129 2,401 124 Bedfordshire 797 89 914 79 955 82 Cambridgeshire 793 41 813 51 852 41 Cheshire 1,652 122 1,529 96 1,993 103 Cleveland 777 56 887 77 921 71 Cumbria 806 50 761 51 768 37 Derbyshire 1,417 126 1,411 140 1,465 164 Devon and Cornwall 2,199 104 2,369 128 2,441 95 Dorset 1,115 84 1,150 91 1,199 83 Durham 1,124 76 1,097 86 1,136 68 Essex 2,462 237 2,456 264 2,522 267 Gloucestershire 804 37 865 39 926 44 Greater Manchester 4,801 428 4,715 454 4,720 474 Hampshire 3,472 244 3,464 235 3,846 243 Hertfordshire 1,552 98 1,666 94 1,894 90 Humberside 1,371 128 1,259 126 1,395 113 Kent 2,592 134 2,575 165 2,745 152 Lancashire 2,584 163 2,304 148 2,599 159 Leicestershire 1,531 152 1,546 140 1,659 140 Lincolnshire 816 48 877 60 847 56 London, City of 162 4 162 10 221 12 Merseyside 2,128 286 2,195 217 2,293 216 Metropolitan Police 11,801 891 11,260 928 12,905 927 Norfolk 935 45 1,143 75 1,220 55 Northamptonshire 782 90 399 65 236 35 Northumbria 2,621 215 2,529 217 2,588 188 North Yorkshire 1,073 67 1,066 55 1,119 63 Nottinghamshire 1,722 210 1,598 187 1,420 129 South Yorkshire 2,122 170 2,020 159 1,945 165 Staffordshire3 n/a n/a 1,513 136 1,704 143 Suffolk 902 74 920 43 1,105 79 Surrey 1,539 61 1,592 65 1,614 68 Sussex 2,112 136 2,358 128 2,306 149 Thames Valley 3,496 212 3,275 210 4,317 219 Warwickshire 786 42 880 33 841 40 West Mercia 1,631 101 1,740 91 1,719 93 West Midlands 4,559 451 4,914 471 5,050 438 West Yorkshire 3,375 287 3,220 331 3,564 268 Wiltshire 930 28 1,045 53 1,005 54 England 79,671 6,076 78,684 6,127 84,456 5,947 Dyfed Powys 858 45 867 36 927 47 Gwent 1,211 99 1,152 76 1,074 74 North Wales 1,332 92 1,227 87 1,270 71 South Wales 2,757 255 2,812 295 2,761 236 Wales 6,158 491 6,058 494 6,032 428 England and Wales 85,829 6,567 84,742 6,621 90,488 6,375
2003 2004 2005 Police force area Findings of guilt Immediate custody2 Findings of guilt Immediate custody2 Findings of guilt Immediate custody2 Avon and Somerset 2,666 167 2,692 145 2,595 127 Bedfordshire 1,072 72 1,028 65 1,050 81 Cambridgeshire 933 56 1,083 52 1,214 65 Cheshire 1,905 110 2,128 106 1,709 113 Cleveland 981 61 1,071 60 959 44 Cumbria 843 37 907 50 853 54 Derbyshire 1,617 168 1,874 143 1,645 118 Devon and Cornwall 2,667 121 2,560 120 2,446 102 Dorset 1,264 73 1,239 52 1,207 63 Durham 1,170 77 1,277 80 1,168 56 Essex 2,622 311 2,853 349 2,549 262 Gloucestershire 890 37 913 38 834 29 Greater Manchester 4,743 437 4,811 379 4,653 317 Hampshire 3,663 234 3,743 199 3,372 189 Hertfordshire 1,904 78 1,881 94 1,836 87 Humberside 1,445 150 1,623 112 1,592 117 Kent 2,811 179 3,010 155 2,907 157 Lancashire 2,652 146 2,706 125 2,723 136 Leicestershire 1,725 143 1,754 145 1,631 122 Lincolnshire 1,111 42 1,209 46 1,176 36 London, City of 230 4 169 5 184 4 Merseyside 2,687 215 2,849 261 2,964 252 Metropolitan Police 12,621 922 13,227 832 12,887 766 Norfolk 1,274 59 1,240 64 1,265 50 Northamptonshire 799 65 922 73 853 67 Northumbria 2,747 187 2,675 183 2,561 107 North Yorkshire 1,194 51 1,131 40 1,244 51 Nottinghamshire 1,644 149 1,669 111 1,626 112 South Yorkshire 2,089 125 2,224 140 2,220 124 Staffordshire (3) 1,733 141 1,733 124 1,718 111 Suffolk 1,213 66 1,332 89 1,103 59 Surrey 1,464 44 1,425 51 1,503 53 Sussex 2,430 120 2,368 104 2,379 108 Thames Valley 3,884 159 3,539 190 3,474 181 Warwickshire 918 33 845 23 871 28 West Mercia 1,797 100 1,689 103 1,917 96 West Midlands 5,233 420 5,584 423 5,693 347 West Yorkshire 3,720 260 3,897 276 3,863 163 Wiltshire 1,031 62 1,024 39 1,038 41 England 87,392 5,881 89,904 5,646 87,482 4,995 Dyfed Powys 995 46 986 47 932 36 Gwent 1,149 94 1,188 69 1,129 74 North Wales 1,326 76 1,349 75 1,364 68 South Wales 2,840 211 2,811 222 2,811 199 Wales 6,310 427 6,334 413 6,236 377 England and Wales 93,702 6,308 96,238 6,059 93,718 5,372 n/a = Not available. 1 Data provided cover summary offences of driving etc after consuming alcohol or taking drugs (which cannot reliably be distinguished separately). 2 Immediate Custody includes sentences of Secure Training Order, Detention & Training Order, Young Offender Institution and Unsuspended sentence of imprisonment. 3 Staffordshire Police Force were only able to submit sample data for persons proceeded against and convicted in the magistrates' courts for the year 2000. Although sufficient to estimate higher orders of data, these data are not robust enough at a detailed level and have been excluded from the table. Notes: 1. It is known that for some police force areas, the reporting of court proceedings in particular those relating to summary motoring offences, may be less than complete. 2. Every effort is made to ensure that the figures presented are accurate and complete. However, it is important to note that these data have been extracted from large administrative data systems generated by the courts and police forces. As a consequence, care should be taken to ensure data collection processes and their inevitable limitations are taken into account when these data are used.