Findings from the British Crime Survey have been released in Crime in England and Wales
2009/10 [pdf]. In respect of drug and alcohol-related crime it reports:
'According to the 2009/10 BCS, victims believed the offender(s) to be under the influence of alcohol in half (50%) of all violent incidents, similar to the level in the 2008/09 survey.
on the 2009/10 BCS, there were 986,000 violent incidents where the victim believed the
offender(s) to be under the influence of alcohol (Tables 3.19 and 3.20).
In one in five (20%) violent incidents the victim believed the offender(s) to be under the
influence of drugs; again the difference was not statistically significant compared with
2008/09. The 2009/10 BCS estimates that there were 396,000 incidents where the victim
perceived the offender(s) to be under the influence of drugs.
The number of alcohol-related and drug-related violent incidents are similar to the levels in 2008/09 (the apparent differences are not statistically significant). Within the context of an overall fall in the number of violent crimes, longer-term trends show there have also been significant decreases since 1995 in the number of violent incidents in which victims believed offender(s) were under the influence of either alcohol or drugs. However, the proportion of both alcohol-related and drug-related violent incidents has increased over this period (Table 3.20).'