The available information is given in the following tables. Information on breathalyser tests broken down by the age of the driver is not collected centrally.
Total tests 1997 1998 1999 2000 2001 2002 2003 20042 20051 20061 January 65,300 64,700 66,700 65,000 54,100 45,700 47,000 46,200 48,400 50,200 February 52,400 53,400 55,900 53,400 44,300 43,500 41,800 40,300 40,900 41,000 March 55,000 55,600 57,300 51,900 46,500 43,200 41,300 40,600 42,500 40,200 April 53,600 57,200 56,400 54,600 49,900 43,200 38,800 41,800 41,700 40,100 May 58,600 58,500 55,500 53,300 52,000 44,400 40,100 43,200 44,700 42,100 June 57,000 58,200 55,700 48,600 44,200 43,300 40,400 44,600 44,200 55,300 July 66,900 61,200 57,800 53,100 43,300 40,800 39,400 46,000 44,700 44,600 August 64,200 66,800 68,400 66,500 52,700 45,400 44,200 45,000 48,100 43,400 September 56,300 59,600 54,500 48,500 44,000 41,500 39,000 45,400 41,500 39,200 October 60,200 68,200 56,500 50,800 42,200 43,300 41,100 45,900 51,700 42,300 November 67,900 69,500 59,500 61,300 51,600 46,700 44,500 52,000 52,100 45,200 December 142,900 142,500 120,300 107,600 99,100 89,100 76,800 86,800 106,800 118,000 Total4 800,300 815,500 764,500 714,800 623,900 570,200 534,300 3578,100 607,400 601,600 1 Following a comparison between the number of positive breath tests reported by each police force in 2006, and the number of court proceedings for drink/driving related offences, it became clear that there was under-reporting in a number of forces. As a result Essex, Humberside, Lancashire, Norfolk, Northumbria, Staffordshire, Dyfed-Powys, Gwent and South Wales court proceedings figures have been substituted for the positive breath test figures. Similar adjustments were also made to various forces data between 1998 and 2005. 2 Total revised since publication, monthly revisions are not available so original 2004 data are provided. 3 Amended from original publication 4 Figures may not match totals due to rounding.
Screening breath tests by region and year, 1997 to 2006Region199719981999200020012002200320042200520061East of England 82,70087,60074,30067,60059,00053,80054,00068,10084,60073,600North West 108,300102,90086,80077,50059,80057,70054,00063,70075,50094,600North East 47,80053,80053,80046,80042,80032,30027,40024,00027,80026,100West Midlands63,40067,30052,30039,90031,80029,10028,20034,30034,80034,700East Midlands83,50095,400105,00097,10082,80070,50066,90069,10056,60048,100Yorkshire and the Humber 54,50053,70051,10053,60050,10047,10041,10037,60044,10048,400London141,500114,700101,50094,90066,20058,60057,20062,20068,60066,600South West 57,10061,90058,20055,80054,80053,30058,40059,40056,60056,900South East 104,500117,800124,200131,400128,700119,500104,200110,500111,700107,000Wales57,10060,50057,10050,30047,80048,20043,00049,20047,00045,700Total3800,300815,500764,500714,800623,900570,200534,300578,100607,400601,600 1 Following a comparison between the number of positive breath tests reported by each police force in 2006, and the number of court proceedings for drink/driving related offences, it became clear that there was under-reporting in a number of forces. As a result Essex, Humberside, Lancashire, Norfolk, Northumbria, Staffordshire, Dyfed-Powys, Gwent and South Wales court proceedings figures have been substituted for the positive breath test figures. Similar adjustments were also made to various forces data between 1998 and 2005.2 Total figure amended from original publication.3 Figures may not match totals due to rounding.
Total Tests Total number positive/refused 1997 800,300 103,500 1998 815,500 102,300 1999 764,500 94,100 2000 714,800 94,600 2001 623,900 99,500 2002 570,200 103,500 2003 534,300 106,300 20041 578,100 103,000 2005 607,400 104,300 2006 601,600 105,700 1 Following a comparison between the number of positive breath tests reported by each police force in 2006, and the number of court proceedings for drink/driving related offences, it became clear that there was under-reporting in a number of forces. As a result Essex, Humberside, Lancashire, Norfolk, Northumbria, Staffordshire, Dyfed-Powys, Gwent and South Wales court proceedings figures have been substituted for the positive breath test figures. Similar adjustments were also made to various forces data between 1998 and 2005. Note: Figure amended since original publication.