Table 2

Crude crash, conviction, and “at fault” crash rates per 100 driver-years at risk: pre-treatment

GroupCrashes* per 100 driver-yearsConvictions per 100 driver-years“At fault” crashes per 100 driver-years
*Crashes in which someone has been killed or injured or where there is property damage above $700 (raised to $1000 in January, 1998) must be reported to the police. The Police Accident Report is forwarded to the Ministry of Transportation for their records.
Alcohol only4.8916.781.98
Cannabis only6.3022.863.21
Cocaine only7.7040.933.44
Alcohol and cannabis7.2020.304.32
Alcohol and cocaine6.5125.544.30
Cannabis and cocaine6.6935.983.27
All three6.2424.303.57