The information requested is given in the table.
It should be noted that non-sanction detections that contribute to the percentage change in detection rates have fallen in recent years reflecting a significant shift by many police forces away from recording detections of crime where no further action is taken. For this reason overall detection rates over time are not fully comparable.
From 2 April 2007 the rules governing recording of non-sanction detections were revised to reduce the scope within which they can be claimed to a very limited set of circumstance. In terms of offences detected by the police, the preferred measure is now to use sanction detections.
Detection rates are a ratio of crimes detected in a period to crimes recorded in a period. They are not based on tracking whether individual crimes recorded in a period have eventually been detected.
Percentage 2002-03 2003-04 2004-05 2005-06 2006-07 2007-08 2008-09 Violence against the person 67 67 77 75 70 69 59 Sexual offences 51 48 46 47 44 37 37 Robbery 21 32 31 31 26 29 31 Burglary 11 13 13 14 11 12 13 Offences against vehicle 6 9 9 11 8 8 11 Other theft offences 24 25 27 28 28 28 28 Fraud and forgery 48 46 56 50 49 57 52 Criminal damage 14 15 19 20 19 18 17 Drug offences 102 100 98 98 99 87 95 Other offences 94 96 89 93 77 87 84 Total 26 28 35 35 33 33 31 Note: Offences detected in a given year may have been initially recorded in an earlier year and for this reason some percentages may exceed 100.